Drop glibc-gcc-strict-overflow.patch

This is no longer necessary because we do not build with -O3 anymore.
Upstream has a proper fix now, too.

glibc-gcc-strict-overflow.patch

@@ -1,37 +0,0 @@
-Builds with gcc 7.0 fail with:
-
-../test-skeleton.c: In function ‘legacy_test_function’:
-cc1: error: assuming signed overflow does not occur when \
-assuming that (X - c) <= X is always true [-Werror=strict-overflow]
-
-Ignoring this warning until the test or compiler is adjusted.
-Disabled with -Wno-strict-overflow. Attempted -Wstrict-overflow=1,
-but it still results in the same warning.
-
-Index: glibc-2.24-661-g5653ab1/string/Makefile
-===================================================================
---- glibc-2.24-661-g5653ab1.orig/string/Makefile
-+++ glibc-2.24-661-g5653ab1/string/Makefile
-@@ -71,7 +71,9 @@ include ../Rules
- CFLAGS-inl-tester.c = -fno-builtin
- CFLAGS-noinl-tester.c = -fno-builtin
- CFLAGS-tst-strlen.c = -fno-builtin
--CFLAGS-stratcliff.c = -fno-builtin
-+# Added '-Wno-strict-overflow' for gcc 7.0 until the test or compiler
-+# is adjusted.
-+CFLAGS-stratcliff.c = -fno-builtin -Wno-strict-overflow
- CFLAGS-test-ffs.c = -fno-builtin
- CFLAGS-tst-inlcall.c = -fno-builtin
- CFLAGS-tst-xbzero-opt.c = -O3
-Index: glibc-2.24-661-g5653ab1/wcsmbs/Makefile
-===================================================================
---- glibc-2.24-661-g5653ab1.orig/wcsmbs/Makefile
-+++ glibc-2.24-661-g5653ab1/wcsmbs/Makefile
-@@ -102,3 +102,7 @@ CPPFLAGS += $(libio-mtsafe)
- CPPFLAGS-wcstold_l.c = -I../stdlib
- 
- $(objpfx)tst-wcstod-nan-locale: $(libm)
-+
-+# Added '-Wno-strict-overflow' for gcc 7.0 until the test or compiler
-+# is adjusted.
-+CFLAGS-wcsatcliff.c = -Wno-strict-overflow

glibc.spec

@@ -219,9 +219,6 @@ Patch0059: glibc-c-utf8-locale.patch
 # Build libcrypt twice, with and without NSS.
 Patch0060: glibc-rh1324623.patch
 
-# Fix -Wstrict-overflow issues with gcc 7.0.
-Patch0061: glibc-gcc-strict-overflow.patch
-
 ##############################################################################
 #
 # Patches from upstream
@@ -749,7 +746,6 @@ microbenchmark tests on the system.
 %patch2114 -p1
 %patch2115 -p1
 %patch2116 -p1
-%patch0061 -p1
 
 ##############################################################################
 # %%prep - Additional prep required...