Filter out configuration file from compile commands (#131099)
The commands to run the compilation when printed with `-###` contain
various irrelevant lines for the perf-training. Most of them are
filtered out already but when configured with
`CLANG_CONFIG_FILE_SYSTEM_DIR` a new line like the following is
added and needs to be filtered out:
`Configuration file: /etc/clang/x86_64-redhat-linux-gnu-clang.cfg`