Remove EOL whitespace globally

compiler/pgates/pand2.py

@@ -146,4 +146,3 @@ class pand2(pgate.pgate):
                                             offset=pin.center(),
                                             width=pin.width(),
                                             height=pin.height())
-        

compiler/pgates/pand3.py

@@ -161,4 +161,3 @@ class pand3(pgate.pgate):
                                               slew=nand_delay.slew,
                                               load=load)
         return nand_delay + inv_delay
-    

compiler/pgates/pdriver.py

@@ -168,4 +168,3 @@ class pdriver(pgate.pgate):
     def get_sizes(self):
         """ Return the relative sizes of the buffers """
         return self.size_list
-