Remove qmake build files

Removes qmake as a build system for building Qt Creator itself.
Keep them for some tests that are not completely moved to CMake yet.

Change-Id: I846c6ef65626b6dfae6375fdc85d00677aa8c2fb
Reviewed-by: hjk <hjk@qt.io>
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/libs/cplusplus/cplusplus-lib.pri

@@ -1,86 +0,0 @@
-shared {
-    DEFINES += CPLUSPLUS_BUILD_LIB
-} else {
-    DEFINES += CPLUSPLUS_BUILD_STATIC_LIB
-}
-
-INCLUDEPATH *= $$IDE_SOURCE_TREE/src/libs/3rdparty
-
-include(../3rdparty/cplusplus/cplusplus.pri)
-
-QT += concurrent
-
-#DEFINES += DEBUG_INCLUDE_GUARD_TRACKING
-
-contains(QT, gui) {
-HEADERS += \
-    $$PWD/Icons.h \
-    $$PWD/ExpressionUnderCursor.h \
-    $$PWD/BackwardsScanner.h \
-    $$PWD/MatchingText.h
-
-SOURCES += \
-    $$PWD/Icons.cpp \
-    $$PWD/ExpressionUnderCursor.cpp \
-    $$PWD/BackwardsScanner.cpp \
-    $$PWD/MatchingText.cpp
-}
-
-HEADERS += \
-    $$PWD/SimpleLexer.h \
-    $$PWD/CppDocument.h \
-    $$PWD/CppRewriter.h \
-    $$PWD/Overview.h \
-    $$PWD/NamePrettyPrinter.h \
-    $$PWD/TypeOfExpression.h \
-    $$PWD/TypePrettyPrinter.h \
-    $$PWD/ResolveExpression.h \
-    $$PWD/LookupItem.h \
-    $$PWD/AlreadyConsideredClassContainer.h \
-    $$PWD/LookupContext.h \
-    $$PWD/ASTParent.h \
-    $$PWD/ASTPath.h \
-    $$PWD/SnapshotSymbolVisitor.h \
-    $$PWD/SymbolNameVisitor.h \
-    $$PWD/DeprecatedGenTemplateInstance.h \
-    $$PWD/FindUsages.h \
-    $$PWD/DependencyTable.h \
-    $$PWD/PreprocessorClient.h \
-    $$PWD/PreprocessorEnvironment.h \
-    $$PWD/Macro.h \
-    $$PWD/FastPreprocessor.h \
-    $$PWD/pp.h \
-    $$PWD/pp-cctype.h \
-    $$PWD/pp-engine.h \
-    $$PWD/pp-scanner.h \
-    $$PWD/findcdbbreakpoint.h \
-    $$PWD/PPToken.h \
-    $$PWD/cppmodelmanagerbase.h
-
-SOURCES += \
-    $$PWD/SimpleLexer.cpp \
-    $$PWD/CppDocument.cpp \
-    $$PWD/CppRewriter.cpp \
-    $$PWD/Overview.cpp \
-    $$PWD/NamePrettyPrinter.cpp \
-    $$PWD/TypeOfExpression.cpp \
-    $$PWD/TypePrettyPrinter.cpp \
-    $$PWD/ResolveExpression.cpp \
-    $$PWD/LookupItem.cpp \
-    $$PWD/LookupContext.cpp \
-    $$PWD/ASTParent.cpp \
-    $$PWD/ASTPath.cpp \
-    $$PWD/SnapshotSymbolVisitor.cpp \
-    $$PWD/SymbolNameVisitor.cpp \
-    $$PWD/DeprecatedGenTemplateInstance.cpp \
-    $$PWD/FindUsages.cpp \
-    $$PWD/DependencyTable.cpp \
-    $$PWD/PreprocessorClient.cpp \
-    $$PWD/PreprocessorEnvironment.cpp \
-    $$PWD/FastPreprocessor.cpp \
-    $$PWD/Macro.cpp \
-    $$PWD/pp-engine.cpp \
-    $$PWD/pp-scanner.cpp \
-    $$PWD/findcdbbreakpoint.cpp \
-    $$PWD/PPToken.cpp \
-    $$PWD/cppmodelmanagerbase.cpp

src/libs/cplusplus/cplusplus.pro

@@ -1,6 +0,0 @@
-DEFINES += NDEBUG
-unix:QMAKE_CXXFLAGS_DEBUG += -O2
-win32:QMAKE_CXXFLAGS_DEBUG += -O2
-
-include(../../qtcreatorlibrary.pri)
-include(cplusplus-lib.pri)

src/libs/cplusplus/cplusplus_dependencies.pri

@@ -1,4 +0,0 @@
-QTC_LIB_NAME = CPlusPlus
-QTC_LIB_DEPENDS += \
-    utils
-INCLUDEPATH *= $$IDE_SOURCE_TREE/src/libs/3rdparty