build: Avoid installing pkg-config files in multiple rules. * Makefile.am, libinterp/module.mk, liboctave/module.mk: Remove pkgconfig_DATA that was a collection of liboctave_pkgconfig_DATA and libinterp_pkgconfig_DATA. The latter already handle the two .pc files sufficiently. See also: https://octave.discourse.group/t/3384

root = true

[*]
charset = utf-8
end_of_line = lf
indent_size = 2
indent_style = space
insert_final_newline = true

[*.{am,mk}]
indent_size = tab
indent_style = tab