Revert "_ci-linux-debian.sh: test cross c++ libs"

This reverts commit 0366fdc.

Author: vszakats

_ci-linux-debian.sh

@@ -95,11 +95,11 @@ elif [[ "${CW_CONFIG:-}" = *'linux'* ]]; then
     # FIXME: workaround for glibc-llvm-riscv64 builds:
     [[ "${CW_CONFIG:-}" != *'gcc'* ]] && [[ "${CW_CONFIG:-}" = *'r64'* ]] && extra+=" gcc${CW_GCCSUFFIX}-riscv64-linux-gnu g++${CW_GCCSUFFIX}-riscv64-linux-gnu"
     if [ "$(uname -m)" = 'aarch64' ]; then
-      extra+=' libc6-dev-amd64-cross libstdc++-11-dev-amd64-cross'
+      extra+=' libc6-dev-amd64-cross'
     else
-      extra+=' libc6-dev-arm64-cross libstdc++-11-dev-arm64-cross'
+      extra+=' libc6-dev-arm64-cross'
     fi
-    [[ "${CW_CONFIG:-}" = *'r64'* ]] && extra+=' libc6-dev-riscv64-cross libstdc++-11-dev-riscv64-cross'
+    [[ "${CW_CONFIG:-}" = *'r64'* ]] && extra+=' libc6-dev-riscv64-cross'
   fi
 fi