diff --git a/BaseTools/Conf/tools_def.template b/BaseTools/Conf/tools_def.template
index 67cba28153..d345050aa8 100755
--- a/BaseTools/Conf/tools_def.template
+++ b/BaseTools/Conf/tools_def.template
@@ -4472,82 +4472,6 @@ RELEASE_GCC45_IA32_CC_FLAGS       = DEF(GCC45_IA32_CC_FLAGS) -Os
 RELEASE_GCC45_X64_CC_FLAGS       = DEF(GCC45_X64_CC_FLAGS) -Os
   NOOPT_GCC45_X64_CC_FLAGS       = DEF(GCC45_X64_CC_FLAGS) -O0
 
-####################################################################################
-#
-# GCC 4.6 - This configuration is used to compile under Linux to produce
-#           PE/COFF binaries using GCC 4.6.
-#
-####################################################################################
-*_GCC46_*_*_FAMILY               = GCC
-
-*_GCC46_*_MAKE_PATH                    = DEF(GCC_HOST_PREFIX)make
-*_GCC46_*_*_DLL                        = ENV(GCC46_DLL)
-*_GCC46_*_ASL_PATH                     = DEF(UNIX_IASL_BIN)
-
-*_GCC46_*_PP_FLAGS                     = DEF(GCC_PP_FLAGS)
-*_GCC46_*_ASLPP_FLAGS                  = DEF(GCC_ASLPP_FLAGS)
-*_GCC46_*_ASLCC_FLAGS                  = DEF(GCC_ASLCC_FLAGS)
-*_GCC46_*_VFRPP_FLAGS                  = DEF(GCC_VFRPP_FLAGS)
-*_GCC46_*_APP_FLAGS                    =
-*_GCC46_*_ASL_FLAGS                    = DEF(IASL_FLAGS)
-*_GCC46_*_ASL_OUTFLAGS                 = DEF(IASL_OUTFLAGS)
-
-##################
-# GCC46 IA32 definitions
-##################
-*_GCC46_IA32_OBJCOPY_PATH         = DEF(GCC46_IA32_PREFIX)objcopy
-*_GCC46_IA32_CC_PATH              = DEF(GCC46_IA32_PREFIX)gcc
-*_GCC46_IA32_SLINK_PATH           = DEF(GCC46_IA32_PREFIX)ar
-*_GCC46_IA32_DLINK_PATH           = DEF(GCC46_IA32_PREFIX)gcc
-*_GCC46_IA32_ASLDLINK_PATH        = DEF(GCC46_IA32_PREFIX)gcc
-*_GCC46_IA32_ASM_PATH             = DEF(GCC46_IA32_PREFIX)gcc
-*_GCC46_IA32_PP_PATH              = DEF(GCC46_IA32_PREFIX)gcc
-*_GCC46_IA32_VFRPP_PATH           = DEF(GCC46_IA32_PREFIX)gcc
-*_GCC46_IA32_ASLCC_PATH           = DEF(GCC46_IA32_PREFIX)gcc
-*_GCC46_IA32_ASLPP_PATH           = DEF(GCC46_IA32_PREFIX)gcc
-*_GCC46_IA32_RC_PATH              = DEF(GCC46_IA32_PREFIX)objcopy
-
-*_GCC46_IA32_ASLCC_FLAGS          = DEF(GCC_ASLCC_FLAGS) -m32
-*_GCC46_IA32_ASLDLINK_FLAGS       = DEF(GCC46_IA32_X64_ASLDLINK_FLAGS) -Wl,-m,elf_i386
-*_GCC46_IA32_ASM_FLAGS            = DEF(GCC46_ASM_FLAGS) -m32 -march=i386
-*_GCC46_IA32_DLINK_FLAGS          = DEF(GCC46_IA32_X64_DLINK_FLAGS) -Wl,-m,elf_i386,--oformat=elf32-i386
-*_GCC46_IA32_DLINK2_FLAGS         = DEF(GCC46_IA32_DLINK2_FLAGS)
-*_GCC46_IA32_RC_FLAGS             = DEF(GCC_IA32_RC_FLAGS)
-*_GCC46_IA32_OBJCOPY_FLAGS        =
-*_GCC46_IA32_NASM_FLAGS           = -f elf32
-
-  DEBUG_GCC46_IA32_CC_FLAGS       = DEF(GCC46_IA32_CC_FLAGS) -Os
-RELEASE_GCC46_IA32_CC_FLAGS       = DEF(GCC46_IA32_CC_FLAGS) -Os -Wno-unused-but-set-variable
-  NOOPT_GCC46_IA32_CC_FLAGS       = DEF(GCC46_IA32_CC_FLAGS) -O0
-
-##################
-# GCC46 X64 definitions
-##################
-*_GCC46_X64_OBJCOPY_PATH         = DEF(GCC46_X64_PREFIX)objcopy
-*_GCC46_X64_CC_PATH              = DEF(GCC46_X64_PREFIX)gcc
-*_GCC46_X64_SLINK_PATH           = DEF(GCC46_X64_PREFIX)ar
-*_GCC46_X64_DLINK_PATH           = DEF(GCC46_X64_PREFIX)gcc
-*_GCC46_X64_ASLDLINK_PATH        = DEF(GCC46_X64_PREFIX)gcc
-*_GCC46_X64_ASM_PATH             = DEF(GCC46_X64_PREFIX)gcc
-*_GCC46_X64_PP_PATH              = DEF(GCC46_X64_PREFIX)gcc
-*_GCC46_X64_VFRPP_PATH           = DEF(GCC46_X64_PREFIX)gcc
-*_GCC46_X64_ASLCC_PATH           = DEF(GCC46_X64_PREFIX)gcc
-*_GCC46_X64_ASLPP_PATH           = DEF(GCC46_X64_PREFIX)gcc
-*_GCC46_X64_RC_PATH              = DEF(GCC46_X64_PREFIX)objcopy
-
-*_GCC46_X64_ASLCC_FLAGS          = DEF(GCC_ASLCC_FLAGS) -m64
-*_GCC46_X64_ASLDLINK_FLAGS       = DEF(GCC46_IA32_X64_ASLDLINK_FLAGS) -Wl,-m,elf_x86_64
-*_GCC46_X64_ASM_FLAGS            = DEF(GCC46_ASM_FLAGS) -m64 -melf_x86_64
-*_GCC46_X64_DLINK_FLAGS          = DEF(GCC46_X64_DLINK_FLAGS)
-*_GCC46_X64_DLINK2_FLAGS         = DEF(GCC46_X64_DLINK2_FLAGS)
-*_GCC46_X64_RC_FLAGS             = DEF(GCC_X64_RC_FLAGS)
-*_GCC46_X64_OBJCOPY_FLAGS        =
-*_GCC46_X64_NASM_FLAGS           = -f elf64
-
-  DEBUG_GCC46_X64_CC_FLAGS       = DEF(GCC46_X64_CC_FLAGS) -Os
-RELEASE_GCC46_X64_CC_FLAGS       = DEF(GCC46_X64_CC_FLAGS) -Os -Wno-unused-but-set-variable
-  NOOPT_GCC46_X64_CC_FLAGS       = DEF(GCC46_X64_CC_FLAGS) -O0
-
 ####################################################################################
 #
 # GCC 4.8 - This configuration is used to compile under Linux to produce