Tools: common.py : make some method statics

Tools/autotest/common.py

@@ -110,12 +110,14 @@ class AutoTest(ABC):
         self.viewerip = viewerip
         self.use_map = use_map
 
-    def progress(self, text):
+    @staticmethod
+    def progress(text):
         """Display autotest progress text."""
         print("AUTOTEST: " + text)
 
     # following two functions swiped from autotest.py:
-    def buildlogs_dirpath(self):
+    @staticmethod
+    def buildlogs_dirpath():
         return os.getenv("BUILDLOGS", util.reltopdir("../buildlogs"))
 
     def buildlogs_path(self, path):
@@ -299,7 +301,8 @@ class AutoTest(ABC):
             self.mavproxy.send('map set showgpspos 0\n')
             self.mavproxy.send('map set showsimpos 0\n')
 
-    def mission_count(self, filename):
+    @staticmethod
+    def mission_count(filename):
         """Load a mission from a file and return number of waypoints."""
         wploader = mavwp.MAVWPLoader()
         wploader.load(filename)