clean up

Author: hathach

.github/workflows/githubci.yml

@@ -74,7 +74,6 @@ jobs:
          path: linkermap
 
     - name: Set Toolchain URL
-      # 9.3.1-1.2.1 is xpack modified version which significantly increased compiled size to 6-7KB and cause flash overflow.
       run: echo >> $GITHUB_ENV TOOLCHAIN_URL=https://github.com/xpack-dev-tools/arm-none-eabi-gcc-xpack/releases/download/v10.2.1-1.1/xpack-arm-none-eabi-gcc-10.2.1-1.1-linux-x64.tar.gz
 
     - name: Cache Toolchain