addresses #95 RTF building failure

Signed-off-by: benjamin.jakimow <benjamin.jakimow@geo.hu-berlin.de>

.readthedocs.yml

@@ -15,7 +15,6 @@ formats:
 python:
   version: 3.7
   install:
-    - requirements:  requirements_dev.txt
     - requirements:  doc/source/requirements.txt
 
 

doc/source/conf.py

@@ -22,7 +22,7 @@ import mock
 
 
 if True:
-    MOCK_MODULES = ['qgis', 'qgis.core', 'qgis.gui', 'qgis.utils', 'numpy', 'scipy',
+    MOCK_MODULES = ['qgis', 'qgis.core', 'qgis.gui', 'qgis.utils', 'numpy', 'scipy', 'osgeo', 'gdal',
                 'vrtbuilder', 'vrtbuilder.virtualrasters',
                 'qgis.PyQt', 'qgis.PyQt.Qt', 'qgis.PyQt.QtCore', 'qgis.PyQt.QtGui', 'qgis.PyQt.QtWidgets', 'qgis.PyQt.QtXml',
                 'processing', 'processing.core', 'processing.core.ProcessingConfig']