NaCl: Remove unneeded entry from components/nacl/loader/DEPS

BUG=https://code.google.com/p/nativeclient/issues/detail?id=3864
TEST=checkdeps

Review URL: https://codereview.chromium.org/901903004

Cr-Commit-Position: refs/heads/master@{#315039}

components/nacl/loader/DEPS

@@ -13,7 +13,6 @@ include_rules = [
   "+native_client/src/include",
   "+native_client/src/public",
   "+native_client/src/shared/platform/nacl_host_desc.h",
-  "+native_client/src/shared/srpc/nacl_srpc.h",
   "+native_client/src/trusted/desc",
   "+native_client/src/trusted/service_runtime/include",
   "+native_client/src/trusted/service_runtime/nacl_error_code.h",