Remove unreachable "return" statements

Author: ehrenfeu

src/imcflibs/imagej/trackmate.py

@@ -347,7 +347,6 @@ def run_trackmate(
     ok = trackmate.checkInput()
     if not ok:
         sys.exit(str(trackmate.getErrorMessage()))
-        return
 
     ok = trackmate.process()
     if not ok:
@@ -368,8 +367,6 @@ def run_trackmate(
         else:
             sys.exit(str(trackmate.getErrorMessage()))
 
-            return
-
     SelectionModel(model)
 
     exportSpotsAsDots = False