Revert "workaround for issue wih gdb/mingw"

This reverts commit 5423f49 because the
GDB build issue has been fixed.

Signed-off-by: Stephanos Ioannidis <root@stephanos.io>

Author: stephanosio

.github/workflows/ci.yml

@@ -500,11 +500,8 @@ jobs:
         # Install dependencies for cross compilation
         if [ "${{ matrix.host.name }}" == "windows-x86_64" ]; then
           # Make MinGW-w64 win32 cross toolchain available in PATH
-          #echo "/opt/mingw-w64-win32/bin" >> $GITHUB_PATH
-          #export PATH="/opt/mingw-w64-win32/bin:$PATH"
-          # Install MinGW-w64 cross toolchain
-          sudo apt-get install -y binutils-mingw-w64 gcc-mingw-w64 \
-                                  g++-mingw-w64
+          echo "/opt/mingw-w64-win32/bin" >> $GITHUB_PATH
+          export PATH="/opt/mingw-w64-win32/bin:$PATH"
 
           # Build and install libboost-regex for MinGW-w64 host
           ## Check out Boost library source code