Removed CUDA 7.1 from list of CUDA versions to use in configure

configure

@@ -38,7 +38,7 @@ default_acmls="acml5.3.1/ifort64"
 default_mkls=""
 
 # NOTE: Will get compilation errors with cuda-6.0
-default_cudas="cuda-7.5 cuda-7.0 cuda-6.5 cuda-7.1"
+default_cudas="cuda-7.5 cuda-7.0 cuda-6.5"
 default_kaldis="kaldi-trunk"
 default_gdks="."