Fix flake8 warnings. Re #23212

Testing/SystemTests/tests/analysis/ReflectometryFloodCorrection.py

@@ -8,7 +8,7 @@ class ReflectometryCreateFloodWorkspaceNoExclude(stresstesting.MantidStressTest)
     flood_ws_name = 'flood'
 
     def runTest(self):
-        flood = CreateFloodWorkspace('OFFSPEC00035946.nxs', StartSpectrumIndex=265, EndSpectrumIndex=500, OutputWorkspace=self.flood_ws_name)
+        CreateFloodWorkspace('OFFSPEC00035946.nxs', StartSpectrumIndex=265, EndSpectrumIndex=500, OutputWorkspace=self.flood_ws_name)
 
     def validate(self):
         return self.flood_ws_name,'ReflFloodFileNoExclude.nxs'
@@ -19,8 +19,8 @@ class ReflectometryCreateFloodWorkspaceExclude(stresstesting.MantidStressTest):
     flood_ws_name = 'flood'
 
     def runTest(self):
-        flood = CreateFloodWorkspace('OFFSPEC00035946.nxs', StartSpectrumIndex=250, EndSpectrumIndex=600,
-            Exclude=[260, 261, 262, 516, 517, 518], OutputWorkspace=self.flood_ws_name)
+        CreateFloodWorkspace('OFFSPEC00035946.nxs', StartSpectrumIndex=250, EndSpectrumIndex=600,
+                             Exclude=[260, 261, 262, 516, 517, 518], OutputWorkspace=self.flood_ws_name)
 
     def validate(self):
         return self.flood_ws_name,'ReflFloodFileExclude.nxs'
@@ -31,8 +31,8 @@ class ReflectometryCreateFloodWorkspaceQuadratic(stresstesting.MantidStressTest)
     flood_ws_name = 'flood'
 
     def runTest(self):
-        flood = CreateFloodWorkspace('OFFSPEC00035946.nxs', StartSpectrumIndex=10, Background='Quadratic',
-            Exclude=[260, 261, 262, 516, 517, 518], OutputWorkspace=self.flood_ws_name)
+        CreateFloodWorkspace('OFFSPEC00035946.nxs', StartSpectrumIndex=10, Background='Quadratic',
+                             Exclude=[260, 261, 262, 516, 517, 518], OutputWorkspace=self.flood_ws_name)
 
     def validate(self):
         return self.flood_ws_name,'ReflFloodFileQuadratic.nxs'