remove patch '100-do-not-use-implicit-rules.patch' for eglibc 2.12

Mentioned patch got obsoleted by commit 31300, since it went upstream meanwhile

SVN-Revision: 31341

toolchain/eglibc/patches/2.12/100-do-not-use-implicit-rules.patch

@@ -1,16 +0,0 @@
-diff --git a/trunk/libc/manual/Makefile b/trunk/libc/manual/Makefile
-index 754bf12..40c83be 100644
---- a/libc/manual/Makefile
-+++ b/libc/manual/Makefile
-@@ -243,7 +243,10 @@ ifdef objpfx
- .PHONY: stubs
- stubs: $(objpfx)stubs
- endif
--$(objpfx)stubs ../po/manual.pot $(objpfx)stamp%:
-+$(objpfx)stubs ../po/manual.pot:
-+	$(make-target-directory)
-+	touch $@
-+$(objpfx)stamp%:
- 	$(make-target-directory)
- 	touch $@
-