prune some more qt4 vestiges from project files

Change-Id: Ic71e1b4f10b08274d109c24c7c9de7724b25962b
Reviewed-by: Eike Ziller <eike.ziller@theqtcompany.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>

share/qtcreator/static.pro

@@ -45,7 +45,6 @@ macx: DATA_DIRS += scripts
 
 for(data_dir, DATA_DIRS) {
     files = $$files($$PWD/$$data_dir/*, true)
-    win32:files ~= s|\\\\|/|g
     # Info.plist.in are handled below
     for(file, files):!contains(file, ".*/Info\\.plist\\.in$"):!exists($$file/*):FILES += $$file
 }

share/qtcreator/translations/translations.pro

@@ -51,7 +51,6 @@ extract.commands += \
 QMAKE_EXTRA_TARGETS += extract
 
 plugin_sources = $$files($$IDE_SOURCE_TREE/src/plugins/*)
-win32:plugin_sources ~= s,\\\\,/,g
 plugin_sources ~= s,^$$re_escape($$IDE_SOURCE_TREE/),,g$$i_flag
 plugin_sources -= src/plugins/plugins.pro \
     src/plugins/helloworld \ # just an example

src/plugins/clangcodemodel/clang_installation.pri

@@ -1,5 +1,5 @@
 isEmpty(LLVM_INSTALL_DIR):LLVM_INSTALL_DIR=$$(LLVM_INSTALL_DIR)
-LLVM_INSTALL_DIR ~= s,\\\\,/,g
+LLVM_INSTALL_DIR = $$clean_path($$LLVM_INSTALL_DIR)
 
 DEFINES += CLANG_COMPLETION
 DEFINES += CLANG_HIGHLIGHTING