Remove the custom clang-format PenaltyBreak*

The ISC clang-format style had a custom PenaltyBreak configuration that
prevented break after assignments.  Remove the custom changes as the
default configuration results in more readable code.  As an example,
when the line break occurs after the assignement, all the arguments to
the function fits on a single line:

    -       result = ns_plugin_expandpath(plugin_path, full_path,
    -                                     sizeof(full_path));
    +       result =
    +               ns_plugin_expandpath(plugin_path, full_path, sizeof(full_path));
64 jobs for !5490 with 2933-reformat-with-clang-format-13 in 17 minutes and 37 seconds (queued for 6 seconds)
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unit:gcc:oraclelinux7:amd64 Unit
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