Revert "bionic-amd64-tf-a-build: Add gcc-arm-none-eabi for M-series"

This reverts commit 221fc23cc199b3a30e5dec58f88c03e52b5dba4f.

Reason for revert: arm-none-eabi GNU-A and GNU-RM are installed in the same location

Change-Id: I9b91c3a4fe7601d083d10428bae0f624883b92c9
diff --git a/bionic-amd64-tf-a-build/tf-dependencies.install b/bionic-amd64-tf-a-build/tf-dependencies.install
index 17a5fae..7d1bf04 100755
--- a/bionic-amd64-tf-a-build/tf-dependencies.install
+++ b/bionic-amd64-tf-a-build/tf-dependencies.install
@@ -21,16 +21,11 @@
   https://github.com/Kitware/CMake/releases/download/v3.15.7/cmake-3.15.7-Linux-x86_64.tar.gz
 tar -xf /tmp/cmake-Linux-x86_64.tar.gz -C ${TOOLS_DIR} --strip-components=1
 
-# Install Arm GCC toolchain (arm-none-eabi GNU-A)
+# Install Arm GCC toolchain (arm-none-eabi)
 curl --connect-timeout 5 --retry 5 --retry-delay 1 --create-dirs -fsSLo /tmp/gcc-arm-x86_64-arm-none-eabi.tar.xz \
   https://developer.arm.com/-/media/Files/downloads/gnu-a/10.2-2020.11/binrel/gcc-arm-10.2-2020.11-x86_64-arm-none-eabi.tar.xz
 tar -Jxf /tmp/gcc-arm-x86_64-arm-none-eabi.tar.xz -C ${TOOLS_DIR} --strip-components=1
 
-# Install Arm GCC toolchain (arm-none-eabi GNU-RM)
-curl --connect-timeout 5 --retry 5 --retry-delay 1 --create-dirs -fsSLo /tmp/gcc-arm-x86_64-arm-none-eabi.tar.bz2 \
-  https://developer.arm.com/-/media/Files/downloads/gnu-rm/10-2020q4/gcc-arm-none-eabi-10-2020-q4-major-x86_64-linux.tar.bz2
-tar xjf /tmp/gcc-arm-x86_64-arm-none-eabi.tar.bz2 -C ${TOOLS_DIR} --strip-components=1
-
 # Install Arm GCC toolchain (aarch64-none-elf)
 curl --connect-timeout 5 --retry 5 --retry-delay 1 --create-dirs -fsSLo /tmp/gcc-arm-x86_64-aarch64-none-elf.tar.xz \
   https://developer.arm.com/-/media/Files/downloads/gnu-a/10.2-2020.11/binrel/gcc-arm-10.2-2020.11-x86_64-aarch64-none-elf.tar.xz