fix processing plugin error when grass7 disabled

Jon McCormack · nyalldawson · commit 8b3762cec42e · 2018-12-11T12:46:57.000+10:00
(cherry picked from commit 9493f55)
diff --git a/python/plugins/processing/algs/grass7/Grass7AlgorithmProvider.py b/python/plugins/processing/algs/grass7/Grass7AlgorithmProvider.py
@@ -157,7 +157,7 @@ def supportedOutputRasterLayerExtensions(self):
         return Grass7Utils.getSupportedOutputRasterExtensions()
 
     def canBeActivated(self):
-        return not bool(Grass7Utils.checkGrass7IsInstalled())
+        return not bool(Grass7Utils.checkGrassIsInstalled())
 
     def tr(self, string, context=''):
         if context == '':
