Remove GML option for loading geo data frame

CHANGES.md

@@ -1,5 +1,7 @@
 ## Version 2.0.0.dev18 (in development)
 
+* Cate (Desktop): Removed option to load GML files solving [#734](https://github.com/CCI-Tools/cate/issues/734)
+
 ## Version 2.0.0.dev17
 
 * Values of scalar variables are now always shown in **VARIABLES** panel in Cate Desktop [#702](https://github.com/CCI-Tools/cate/issues/702)
@@ -14,7 +16,6 @@
 * Fixed Cate Desktop failed to start (in Windows) due to unable to find dll files [#725](https://github.com/CCI-Tools/cate/issues/725)
 * User-defined Setup fails with existing Miniconda/Anaconda installation [#728](https://github.com/CCI-Tools/cate/issues/728)
 
-
 ## Version 2.0.0.dev16
 
 * Added new operation `data_frame_find_closest()` [#706](https://github.com/CCI-Tools/cate/issues/706)

cate/ops/io.py

@@ -411,7 +411,6 @@ def write_csv(obj: DataFrameLike.TYPE,
 @op(tags=['input'], res_pattern='gdf_{index}')
 @op_input('file', file_open_mode='r', file_filters=[dict(name='ESRI Shapefiles', extensions=['shp']),
                                                     dict(name='GeoJSON', extensions=['json', 'geojson']),
-                                                    dict(name='GML', extensions=['gml']),
                                                     _ALL_FILE_FILTER])
 @op_input('crs', nullable=True)
 @op_input('more_args', nullable=True, data_type=DictLike)