Revert "scripts: gcc-wrapper: Use wrapper to check compiler warnings"

This reverts commit cc95d2b.

Makefile

@@ -339,7 +339,7 @@ include scripts/Kbuild.include
 # Make variables (CC, etc...)
 AS		= $(CROSS_COMPILE)as
 LD		= $(CROSS_COMPILE)ld
-REAL_CC		= $(CROSS_COMPILE)gcc
+CC		= $(CROSS_COMPILE)gcc
 CPP		= $(CC) -E
 AR		= $(CROSS_COMPILE)ar
 NM		= $(CROSS_COMPILE)nm
@@ -354,10 +354,6 @@ PERL		= perl
 PYTHON		= python
 CHECK		= sparse
 
-# Use the wrapper for the compiler.  This wrapper scans for new
-# warnings and causes the build to stop upon encountering them.
-CC		= $(PYTHON) $(srctree)/scripts/gcc-wrapper.py $(REAL_CC)
-
 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
 		  -Wbitwise -Wno-return-void $(CF)
 CFLAGS_MODULE   =