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/plugins/qmljstools/qmljstools.pro

@@ -1,48 +0,0 @@
-include(../../qtcreatorplugin.pri)
-
-DEFINES += QMLJSTOOLS_LIBRARY
-
-!shared {
-    DEFINES += QMLJSTOOLS_STATIC
-}
-
-HEADERS += \
-    $$PWD/qmljsbundleprovider.h \
-    $$PWD/qmljstoolsplugin.h \
-    $$PWD/qmljstoolsconstants.h \
-    $$PWD/qmljstoolssettings.h \
-    $$PWD/qmljscodestylepreferencesfactory.h \
-    $$PWD/qmljsmodelmanager.h \
-    $$PWD/qmljsqtstylecodeformatter.h \
-    $$PWD/qmljsrefactoringchanges.h \
-    $$PWD/qmljsfunctionfilter.h \
-    $$PWD/qmljslocatordata.h \
-    $$PWD/qmljsindenter.h \
-    $$PWD/qmljscodestylesettingspage.h \
-    $$PWD/qmljssemanticinfo.h \
-    $$PWD/qmljstools_global.h
-
-SOURCES += \
-    $$PWD/qmljsbundleprovider.cpp \
-    $$PWD/qmljstoolsplugin.cpp \
-    $$PWD/qmljstoolssettings.cpp \
-    $$PWD/qmljscodestylepreferencesfactory.cpp \
-    $$PWD/qmljsmodelmanager.cpp \
-    $$PWD/qmljsqtstylecodeformatter.cpp \
-    $$PWD/qmljsrefactoringchanges.cpp \
-    $$PWD/qmljsfunctionfilter.cpp \
-    $$PWD/qmljslocatordata.cpp \
-    $$PWD/qmljsindenter.cpp \
-    $$PWD/qmljscodestylesettingspage.cpp \
-    $$PWD/qmljssemanticinfo.cpp
-
-RESOURCES += \
-    qmljstools.qrc
-
-FORMS += \
-    $$PWD/qmljscodestylesettingspage.ui
-
-equals(TEST, 1) {
-    SOURCES += \
-        $$PWD/qmljstools_test.cpp
-}

src/plugins/qmljstools/qmljstools_dependencies.pri

@@ -1,14 +0,0 @@
-QTC_PLUGIN_NAME = QmlJSTools
-QTC_LIB_DEPENDS += \
-    aggregation \
-    cplusplus \
-    extensionsystem \
-    languageutils \
-    qmljs \
-    utils
-QTC_PLUGIN_DEPENDS += \
-    coreplugin \
-    projectexplorer \
-    qtsupport \
-    texteditor \
-    cppeditor