Fix regex lines in zuul.d/* files

Commit c76727b97c040 broke the gate by causing jobs
to not get run when it added RE2 compatibility for
irrelevant files. Digging found that RE2 doesn't
support negative lookahead (and won't ever). This
fixes the issue by just not including the single
file we care about in each section.

[0] https://github.com/google/re2/issues/156

Change-Id: I6f8445bcd2a409cc0e85943b7d20ce578e37dd55
1 file changed