Remove duplicate arguments.

Previous local rebase -i by Cedric was buggy, leading to bad commits.

slapos/grid/slapgrid.py

@@ -127,13 +127,6 @@ def parseArgumentTupleAndReturnSlapgridObject(*argument_tuple):
     help="Force the update of a single software release (use url hash)," + \
          "event if is already installed. This option will make all others " + \
          "sofware releases be ignored")
-  parser.add_argument("--only_cp",
-    help="Update a single or a list of computer partition (ie.:slappartX, slappartY)," + \
-         "this option will make all others sofware releases be ignored")
-  parser.add_argument("--only_sr",
-    help="Force the update of a single software release (use url hash)," + \
-         "event if is already installed. This option will make all others " + \
-         "sofware releases be ignored")
   parser.add_argument("--only_cp",
     help="Update a single or a list of computer partitions (ie.:slappartX, slappartY)," + \
          "this option will make all others computer partitions be ignored")