Don't require boost in pkg-config
There is no boost.pc. Regression of
87e12d1c8.
Gbp-Pq: Name 0008-Don-t-require-boost-in-pkg-config.patch
pcl (1.12.1+dfsg-6) unstable; urgency=medium
* Disable dh_dwz for clang builds
* Revert "Temporary add depends for #
1013316"
[dgit import unpatched pcl 1.12.1+dfsg-6]