Tools: Slow rover test down for CI, remove unneeded variable

Tools/autotest/apmrover2.py

@@ -32,7 +32,7 @@ class AutoTestRover(AutoTest):
                  binary,
                  valgrind=False,
                  gdb=False,
-                 speedup=10,
+                 speedup=8,
                  frame=None,
                  params=None,
                  gdbserver=False,
@@ -53,7 +53,6 @@ class AutoTestRover(AutoTest):
                                      HOME.heading)
         self.homeloc = None
         self.speedup = speedup
-        self.speedup_default = 10
 
         self.sitl = None
         self.hasInit = False

Tools/autotest/arducopter.py

@@ -55,7 +55,6 @@ class AutoTestCopter(AutoTest):
                                      HOME.heading)
         self.homeloc = None
         self.speedup = speedup
-        self.speedup_default = 10
 
         self.log_name = "ArduCopter"
         self.logfile = None

Tools/autotest/arduplane.py

@@ -45,7 +45,6 @@ class AutoTestPlane(AutoTest):
                                      HOME.heading)
         self.homeloc = None
         self.speedup = speedup
-        self.speedup_default = 10
 
         self.sitl = None
         self.hasInit = False

Tools/autotest/ardusub.py

@@ -42,7 +42,6 @@ class AutoTestSub(AutoTest):
                                      HOME.heading)
         self.homeloc = None
         self.speedup = speedup
-        self.speedup_default = 10
 
         self.sitl = None
         self.hasInit = False

Tools/autotest/quadplane.py

@@ -43,7 +43,6 @@ class AutoTestQuadPlane(AutoTest):
                                      HOME.heading)
         self.homeloc = None
         self.speedup = speedup
-        self.speedup_default = 10
 
         self.log_name = "QuadPlane"
         self.logfile = None