This hides them for shared libraries that do not need them.
Should fix the following lintian warnings:
W: libopm-common-dev: pkg-config-references-unknown-shared-library usr/lib/x86_64-linux-gnu/pkgconfig/opm-common.pc -lpython3.7m (line 12)
W: libopm-common-dev: pkg-config-references-unknown-shared-library usr/lib/x86_64-linux-gnu/pkgconfig/opm-common.pc -lstdc++fs (line 12)
W: libopm-common-dev: pkg-config-references-unknown-shared-library usr/lib/x86_64-linux-gnu/pkgconfig/opm-common.pc -lgomp (line 12)
W: libopm-common-dev: pkg-config-references-unknown-shared-library usr/lib/x86_64-linux-gnu/pkgconfig/opm-common.pc -lboost_system (line 12)
W: libopm-common-dev: pkg-config-references-unknown-shared-library usr/lib/x86_64-linux-gnu/pkgconfig/opm-common.pc -lcjson (line 12)
Gbp-Pq: Name 0002-List-link-dependencies-as-private.patch