diff --git a/build-big-endian.patch b/build-big-endian.patch
deleted file mode 100644
index e8ec439..0000000
--- a/build-big-endian.patch
+++ /dev/null
@@ -1,84 +0,0 @@
-diff -up firefox-60.0/gfx/skia/skia/include/core/SkColorPriv.h.big-endian firefox-60.0/gfx/skia/skia/include/core/SkColorPriv.h
---- firefox-60.0/gfx/skia/skia/include/core/SkColorPriv.h.big-endian	2018-04-09 22:50:48.000000000 +0200
-+++ firefox-60.0/gfx/skia/skia/include/core/SkColorPriv.h	2018-04-18 11:51:38.748680174 +0200
-@@ -54,18 +54,19 @@ static inline U8CPU SkUnitScalarClampToB
-  *
-  *  Here we enforce this constraint.
-  */
--
-+/*
- #ifdef SK_CPU_BENDIAN
-     #define SK_RGBA_R32_SHIFT   24
-     #define SK_RGBA_G32_SHIFT   16
-     #define SK_RGBA_B32_SHIFT   8
-     #define SK_RGBA_A32_SHIFT   0
- #else
-+*/
-     #define SK_RGBA_R32_SHIFT   0
-     #define SK_RGBA_G32_SHIFT   8
-     #define SK_RGBA_B32_SHIFT   16
-     #define SK_RGBA_A32_SHIFT   24
--#endif
-+/*#endif*/
- 
- #define SkGetPackedA32(packed)      ((uint32_t)((packed) << (24 - SK_A32_SHIFT)) >> 24)
- #define SkGetPackedR32(packed)      ((uint32_t)((packed) << (24 - SK_R32_SHIFT)) >> 24)
-diff -up firefox-60.0/gfx/skia/skia/include/core/SkImageInfo.h.big-endian firefox-60.0/gfx/skia/skia/include/core/SkImageInfo.h
---- firefox-60.0/gfx/skia/skia/include/core/SkImageInfo.h.big-endian	2018-04-09 22:50:48.000000000 +0200
-+++ firefox-60.0/gfx/skia/skia/include/core/SkImageInfo.h	2018-04-18 11:51:38.748680174 +0200
-@@ -84,7 +84,8 @@ enum SkColorType {
- #elif SK_PMCOLOR_BYTE_ORDER(R,G,B,A)
-     kN32_SkColorType = kRGBA_8888_SkColorType,
- #else
--    #error "SK_*32_SHIFT values must correspond to BGRA or RGBA byte order"
-+    //#error "SK_*32_SHIFT values must correspond to BGRA or RGBA byte order"
-+    kN32_SkColorType = kBGRA_8888_SkColorType
- #endif
- };
- 
-diff -up firefox-60.0/gfx/skia/skia/include/gpu/GrTypes.h.big-endian firefox-60.0/gfx/skia/skia/include/gpu/GrTypes.h
---- firefox-60.0/gfx/skia/skia/include/gpu/GrTypes.h.big-endian	2018-04-09 22:50:48.000000000 +0200
-+++ firefox-60.0/gfx/skia/skia/include/gpu/GrTypes.h	2018-04-18 11:51:38.748680174 +0200
-@@ -344,15 +344,13 @@ enum GrPixelConfig {
- static const int kGrPixelConfigCnt = kLast_GrPixelConfig + 1;
- 
- // Aliases for pixel configs that match skia's byte order.
--#ifndef SK_CPU_LENDIAN
--    #error "Skia gpu currently assumes little endian"
--#endif
- #if SK_PMCOLOR_BYTE_ORDER(B,G,R,A)
-     static const GrPixelConfig kSkia8888_GrPixelConfig = kBGRA_8888_GrPixelConfig;
- #elif SK_PMCOLOR_BYTE_ORDER(R,G,B,A)
-     static const GrPixelConfig kSkia8888_GrPixelConfig = kRGBA_8888_GrPixelConfig;
- #else
--    #error "SK_*32_SHIFT values must correspond to GL_BGRA or GL_RGBA format."
-+    static const GrPixelConfig kSkia8888_GrPixelConfig = kBGRA_8888_GrPixelConfig;
-+    static const GrPixelConfig kSkiaGamma8888_GrPixelConfig = kSBGRA_8888_GrPixelConfig;
- #endif
- 
- /**
-diff -up firefox-60.0/gfx/skia/skia/src/core/SkColorData.h.big-endian firefox-60.0/gfx/skia/skia/src/core/SkColorData.h
---- firefox-60.0/gfx/skia/skia/src/core/SkColorData.h.big-endian	2018-04-18 13:42:06.980476156 +0200
-+++ firefox-60.0/gfx/skia/skia/src/core/SkColorData.h	2018-04-18 13:42:50.493520552 +0200
-@@ -31,18 +31,19 @@
-  *
-  *  Here we enforce this constraint.
-  */
--
-+/*
- #ifdef SK_CPU_BENDIAN
-     #define SK_BGRA_B32_SHIFT   24
-     #define SK_BGRA_G32_SHIFT   16
-     #define SK_BGRA_R32_SHIFT   8
-     #define SK_BGRA_A32_SHIFT   0
- #else
-+*/
-     #define SK_BGRA_B32_SHIFT   0
-     #define SK_BGRA_G32_SHIFT   8
-     #define SK_BGRA_R32_SHIFT   16
-     #define SK_BGRA_A32_SHIFT   24
--#endif
-+//#endif
- 
- #if defined(SK_PMCOLOR_IS_RGBA) && defined(SK_PMCOLOR_IS_BGRA)
-     #error "can't define PMCOLOR to be RGBA and BGRA"
diff --git a/build-icu-big-endian.patch b/build-icu-big-endian.patch
deleted file mode 100644
index 68fbea1..0000000
--- a/build-icu-big-endian.patch
+++ /dev/null
@@ -1,12 +0,0 @@
-diff -up mozilla-aurora/build/autoconf/icu.m4.icu-endian mozilla-aurora/build/autoconf/icu.m4
---- mozilla-aurora/build/autoconf/icu.m4.icu-endian	2016-12-09 09:11:01.227317790 +0100
-+++ mozilla-aurora/build/autoconf/icu.m4	2016-12-09 09:18:40.608712247 +0100
-@@ -78,7 +78,7 @@ if test -n "$USE_ICU"; then
-     # TODO: the l is actually endian-dependent
-     # We could make this set as 'l' or 'b' for little or big, respectively,
-     # but we'd need to check in a big-endian version of the file.
--    ICU_DATA_FILE="icudt${version}l.dat"
-+    ICU_DATA_FILE="icudt${version}b.dat"
- 
-     dnl We won't build ICU data as a separate file when building
-     dnl JS standalone so that embedders don't have to deal with it.
diff --git a/thunderbird.spec b/thunderbird.spec
index 0552558..ecf7ec1 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -106,7 +106,6 @@ Source32:       node-stdout-nonblocking-wrapper
 
 # Build patches
 Patch9:         mozilla-build-arm.patch
-Patch26:        build-icu-big-endian.patch
 Patch226:       rhbz-1354671.patch
 Patch415:       Bug-1238661---fix-mozillaSignalTrampoline-to-work-.patch
 Patch416:       firefox-SIOCGSTAMP.patch
@@ -117,7 +116,6 @@ Patch103:       rhbz-1219542-s390-build.patch
 
 # PPC fix
 Patch304:       mozilla-1245783.patch
-Patch305:       build-big-endian.patch
 Patch307:       build-disable-elfhack.patch
 
 # Fedora specific patches
@@ -239,10 +237,8 @@ debug %{name}, you want to install %{name}-debuginfo instead.
 
 %patch304 -p1 -b .1245783
 # Patch for big endian platforms only
-%if 0%{?big_endian}
-%patch26 -p1 -b .icu
-%patch305 -p1 -b .big-endian
-%endif
+#%if 0%{?big_endian}
+#%endif
 
 #ARM run-time patch
 %ifarch aarch64