Fix all pep8 warnings

fdroidserver/common.py

@@ -1819,6 +1819,3 @@ def compare_apks(apk1, apk2, tmp_dir):
 
     # If we get here, it seems like they're the same!
     return None
-
-
-

fdroidserver/publish.py

@@ -113,7 +113,7 @@ def main():
 
         # There ought to be valid metadata for this app, otherwise why are we
         # trying to publish it?
-        if not appid in allapps:
+        if appid not in allapps:
             logging.error("Unexpected {0} found in unsigned directory"
                           .format(apkfilename))
             sys.exit(1)