Remove grpc_cfstream from BUILD

BUILD

@@ -307,7 +307,6 @@ grpc_cc_library(
     public_hdrs = GRPC_PUBLIC_HDRS + GRPC_SECURE_PUBLIC_HDRS,
     standalone = True,
     deps = [
-        "grpc_cfstream",
         "grpc_common",
         "grpc_lb_policy_grpclb_secure",
         "grpc_lb_policy_xds_secure",
@@ -361,7 +360,6 @@ grpc_cc_library(
         "gpr",
         "grpc",
         "grpc++_base",
-        "grpc_cfstream",
         "grpc++_codegen_base",
         "grpc++_codegen_base_src",
         "grpc++_codegen_proto",