[Inline] Remove redundant run lines in tests (#179959)
625038d5d5f406385f44983ac2a442b20ad7b241 added NewPM CGSCC coverage to
all of the inliner tests. Now that the NewPM is the default for the
middle end, both check lines cover the same thing (with -passes="inline"
expanding to -passes="cgscc(inline)"). Given that, remove them to get
rid of the redundancy and make the tests run slightly faster (not
measured).
