wxGUI: Fixed PEP8 errors in web_services/ (OSGeo#4706)

* updated

* fixed import issue

.flake8

@@ -45,9 +45,6 @@ per-file-ignores =
     gui/wxpython/mapwin/graphics.py: E722
     gui/wxpython/startup/locdownload.py: E722, E402
     gui/wxpython/timeline/g.gui.timeline.py: E501
-    gui/wxpython/tools/build_modules_xml.py: E722
-    gui/wxpython/web_services/cap_interface.py: E501
-    gui/wxpython/web_services/widgets.py: F841, E402
     # Generated file
     gui/wxpython/menustrings.py: E501
     # F821 undefined name 'cmp'

gui/wxpython/web_services/widgets.py

@@ -60,15 +60,14 @@
 )
 
 import grass.script as gs
+from grass.pydispatch.signal import Signal
 
 rinwms_path = os.path.join(os.getenv("GISBASE"), "etc", "r.in.wms")
 if rinwms_path not in sys.path:
     sys.path.append(rinwms_path)
 
-from wms_base import WMSDriversInfo
-from srs import Srs
-
-from grass.pydispatch.signal import Signal
+from wms_base import WMSDriversInfo  # noqa:E402
+from srs import Srs  # noqa:E402
 
 
 class WSPanel(wx.Panel):
@@ -750,7 +749,6 @@ def OnListSelChanged(self, event):
         self.projs_list = []
         projs_list = []
 
-        intersect_proj = []
         first = True
         for curr in curr_sel_ls:
             layer_projs = curr["cap_intf_l"].GetLayerData("srs")