Revert "remove unnecessary cairo soname patch" HEADmaster

This reverts commit 3500c44bccafd442e50da604287342708506bb5c.

Reason for revert: At least for Linux --without-system-cairo builds, this causes
workdir/UnpackedTarball/cairo/src/.libs/libcairo.so (which is the lib that other
libs like Library_drawinglayer and Library_vcl will link against) to have an
SONAME of libcairo.so.2 (instead of libcairo-lo.so.2), so at runtime libs like
instdir/program/libdrawinglayerlo.so and instdir/program/libvcllo.so will have a
NEEDED of libcairo.so.2 (instead of libcairo-lo.so.2), so will pick up whatever
system libcairo.so.2 (/usr/lib64/libcairo.so.2 from cairo-1.18.2-2.fc41.x86_64,
in my case) instead of instdir/program/libcairo-lo.so.2, which caused e.g.
CppunitTest_vcl_bitmap_render_test
CPPUNIT_TEST_NAME=BitmapRenderTest::testTdf113918 to happen to fail for me with

> [_RUN_____] BitmapRenderTest::testTdf113918
> warn:vcl.gdi:2234659:2234659:vcl/headless/CairoCommon.cxx:1619: unsupported SvpSalGraphics::drawAlphaBitmap case
> vcl/qa/cppunit/bitmaprender/BitmapRenderTest.cxx:100:BitmapRenderTest::testTdf113918
> equality assertion failed
> - Expected: rgba[ffffffff]
> - Actual  : rgba[008000ff]

Change-Id: I9a2a64197185b7c057352c3fb7f3e3f6dbcf70db
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/180884
Reviewed-by: Stephan Bergmann <stephan.bergmann@allotropia.de>
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

0 files changed, 0 insertions, 0 deletions