Remove completely irrelevant warnings from the clang list

Some of the warnings in configure.ac that I added as part of #19180 (moved) are probably c++-only, or objc-only, or openmp-only. We should disable those.

changed milestone to %Tor: unspecified

added clang component::core tor/tor gcc-warnings milestone::Tor: unspecified points::.5 priority::low severity::normal status::new type::defect labels

Trac:
Keywords: N/A deleted, gcc-warnings added

Milestone renamed

Trac:
Milestone: Tor: 0.2.??? to Tor: 0.3.???

Finally admitting that 0.3.??? was a euphemism for Tor: unspecified all along.

Trac:
Milestone: Tor: 0.3.??? to Tor: unspecified
Keywords: N/A deleted, tor-03-unspecified-201612 added

Remove an old triaging keyword.

Trac:
Keywords: tor-03-unspecified-201612 deleted, N/A added

Trac:
Priority: Medium to Low
Keywords: gcc-warnings deleted, gcc-warnings clang added

changed time estimate to 4h

moved to tpo/core/tor#19378 (closed)