BaseTools: Remove RVCT support

RVCT is obsolete and no longer used.
Remove support for it.

Signed-off-by: Rebecca Cran <quic_rcran@quicinc.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>

BaseTools/Source/Python/AutoGen/GenMake.py

@@ -166,7 +166,7 @@ class BuildFile(object):
         GMAKE_FILETYPE :   "include"
     }
 
-    _INC_FLAG_ = {TAB_COMPILER_MSFT : "/I", "GCC" : "-I", "INTEL" : "-I", "RVCT" : "-I", "NASM" : "-I"}
+    _INC_FLAG_ = {TAB_COMPILER_MSFT : "/I", "GCC" : "-I", "INTEL" : "-I", "NASM" : "-I"}
 
     ## Constructor of BuildFile
     #