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/genericprojectmanager/genericprojectmanager.pro

@@ -1,18 +0,0 @@
-include(../../qtcreatorplugin.pri)
-
-HEADERS = genericproject.h \
-    genericprojectplugin.h \
-    genericprojectconstants.h \
-    genericprojectwizard.h \
-    genericprojectfileseditor.h \
-    genericmakestep.h \
-    genericbuildconfiguration.h \
-    filesselectionwizardpage.h
-
-SOURCES = genericproject.cpp \
-    genericprojectplugin.cpp \
-    genericprojectwizard.cpp \
-    genericprojectfileseditor.cpp \
-    genericmakestep.cpp \
-    genericbuildconfiguration.cpp \
-    filesselectionwizardpage.cpp

src/plugins/genericprojectmanager/genericprojectmanager_dependencies.pri

@@ -1,13 +0,0 @@
-QTC_PLUGIN_NAME = GenericProjectManager
-QTC_LIB_DEPENDS += \
-    extensionsystem \
-    utils
-QTC_PLUGIN_DEPENDS += \
-    coreplugin \
-    projectexplorer \
-    texteditor \
-    qtsupport
-QTC_PLUGIN_RECOMMENDS += \
-    cppeditor
-QTC_TEST_DEPENDS += \
-    cppeditor