Revert "enabling building gui"

This reverts commit 3568b29524.

build/SConscript.configure

@@ -92,11 +92,11 @@ vars.Add('QTDIR',           'Qt installation directory')
 vars.Add('QTINCLUDE',       'Additional Qt include directory')
 vars.Add('INTEL_COMPILER',  'Should the Intel C++ compiler be used?')
 
-try:
-        env = Environment(options=vars, ENV = os.environ, tools=['default', 'qt5'], toolpath=['#data/scons'])
-        print 'Checking for Qt 5.x... yes'
-        hasQt = True
-except Exception:
+#try:
+#        env = Environment(options=vars, ENV = os.environ, tools=['default', 'qt5'], toolpath=['#data/scons'])
+#        print 'Checking for Qt 5.x... yes'
+#        hasQt = True
+#except Exception:
 env = Environment(options=vars, ENV = os.environ, tools=['default'], toolpath=['#data/scons'])
 print 'Unable to detect a Qt installation -- not building the GUI!'
 hasQt = False