BaseTools ARM AARCH64: drop redundant compiler arguments

BaseTools ARM AARCH64: drop redundant compiler arguments

The ARM and AARCH64 CC_FLAGS definitions include both GCC_ALL_CC_FLAGS
and GCC44_ALL_CC_FLAGS, resulting in many of the compiler arguments
being passed twice. Since the CLANG35 definitions do not refer to
GCC44_ALL_CC_FLAGS, drop the reference for GCCx as well.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Liming Gao <liming.gao@intel.com>