diff --git a/build-missing-size_t.patch b/build-missing-size_t.patch
deleted file mode 100644
index 36c7a1f..0000000
--- a/build-missing-size_t.patch
+++ /dev/null
@@ -1,11 +0,0 @@
-diff -up firefox-73.0.1/mfbt/FunctionTypeTraits.h.size_t firefox-73.0.1/mfbt/FunctionTypeTraits.h
---- firefox-73.0.1/mfbt/FunctionTypeTraits.h.size_t	2020-02-26 11:59:48.643893199 +0100
-+++ firefox-73.0.1/mfbt/FunctionTypeTraits.h	2020-02-26 11:59:56.806921623 +0100
-@@ -10,6 +10,7 @@
- #define mozilla_FunctionTypeTraits_h
- 
- #include <tuple>
-+#include <stddef.h>
- 
- namespace mozilla {
-