build: remove plugin_no_soname from mac qt qmake.conf

plugin_no_soname was removed from Qt some time ago, see upstream commit
1d034244c261520d5e739534dc264c2500e02b5f. It was replaced with
plugin_with_soname, however that is currently only used (as of 5.15.x)
in the Android Clang mkspec.

Author: fanquake

depends/patches/qt/mac-qmake.conf

@@ -1,5 +1,5 @@
 MAKEFILE_GENERATOR = UNIX
-CONFIG += app_bundle incremental global_init_link_order lib_version_first plugin_no_soname absolute_library_soname
+CONFIG += app_bundle incremental global_init_link_order lib_version_first absolute_library_soname
 QMAKE_INCREMENTAL_STYLE = sublib
 include(../common/macx.conf)
 include(../common/gcc-base-mac.conf)