Removed useless imports

Author: David Lucas

src/sage/coding/grs.py

@@ -38,9 +38,7 @@
 from sage.rings.integer import Integer
 from sage.misc.cachefunc import cached_method
 from copy import copy
-from linear_code import (AbstractLinearCode,
-                         LinearCodeSyndromeDecoder,
-                         LinearCodeNearestNeighborDecoder)
+from linear_code import AbstractLinearCode
 from encoder import Encoder
 from decoder import Decoder, DecodingError
 from sage.rings.arith import xgcd

src/sage/coding/punctured_code.py

@@ -16,9 +16,7 @@
 #                  http://www.gnu.org/licenses/
 #*****************************************************************************
 
-from linear_code import (AbstractLinearCode,
-                         LinearCodeSyndromeDecoder,
-                         LinearCodeNearestNeighborDecoder)
+from linear_code import AbstractLinearCode
 from encoder import Encoder
 from decoder import Decoder, DecodingError
 from sage.misc.cachefunc import cached_method