build: remove no-longer needed qt configure workaround

This was fixed upstream in c45595d64831990311f92fcebc4e34e2797f5352.

depends/packages/qt.mk

@@ -194,7 +194,7 @@ define $(package)_preprocess_cmds
   sed -i.old "s|updateqm.commands = \$$$$\$$$$LRELEASE|updateqm.commands = $($(package)_extract_dir)/qttools/bin/lrelease|" qttranslations/translations/translations.pro && \
   sed -i.old "/updateqm.depends =/d" qttranslations/translations/translations.pro && \
   sed -i.old "s/src_plugins.depends = src_sql src_network/src_plugins.depends = src_network/" qtbase/src/src.pro && \
-  sed -i.old -e 's/if \[ "$$$$XPLATFORM_MAC" = "yes" \]; then xspecvals=$$$$(macSDKify/if \[ "$$$$BUILD_ON_MAC" = "yes" \]; then xspecvals=$$$$(macSDKify/' -e 's|/bin/pwd|pwd|' qtbase/configure && \
+  sed -i.old -e 's|/bin/pwd|pwd|' qtbase/configure && \
   mkdir -p qtbase/mkspecs/macx-clang-linux &&\
   cp -f qtbase/mkspecs/macx-clang/Info.plist.lib qtbase/mkspecs/macx-clang-linux/ &&\
   cp -f qtbase/mkspecs/macx-clang/Info.plist.app qtbase/mkspecs/macx-clang-linux/ &&\