Fix memory leak when constructing a tensor from numpy (#98)

diff --git a/torch/csrc/generic/TensorMethods.cwrap b/torch/csrc/generic/TensorMethods.cwrap
index 49a46b2..b8f4a23 100644
--- a/torch/csrc/generic/TensorMethods.cwrap
+++ b/torch/csrc/generic/TensorMethods.cwrap
@@ -176,13 +176,9 @@
     }
 
     THTensor *result = THTensor_(newWithStorage)(storage, 0, sizes, strides);
-    // newWithStorage increases refcount
-    storage.release();
     return result;
   } else {
     THTensor *result = THTensor_(newWithStorage)(storage, 0, NULL, NULL);
-    // newWithStorage increases refcount
-    storage.release();
     return result;
   }
 }