main/perl-times-hires: remove man pages

Merged Sertonix requested to merge Sertonix/aports:perl-provide-perl-time-hires-doc into master

Currently perl-time-hires-doc and perl-doc provide documentation for the same thing. Since the HiRes package is included in perl since version 5.8 the documentation of it should be newer. This fixes #15280 (closed)

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