Remove methods_to_optimize from script

Summary:
Pull Request resolved: https://github.com/facebookresearch/d2go/pull/54

This arg is being deprecated, and its use case was really only for modules that use functions besides forward for inference.  The new plan is just to optimize every function. Since this script was just created I'm hoping I can edit this without throwing lots of stuff out of wack.

Reviewed By: wat3rBro

Differential Revision: D27954176

fbshipit-source-id: fbe178fcc0404e5d2524d8edb4052e2cd17f43ba

d2go/export/torchscript.py

@@ -24,7 +24,6 @@ class MobileOptimizationConfig(NamedTuple):
     optimization_blocklist: Set[MobileOptimizerType] = None
     preserved_methods: List[AnyStr] = None
     backend: str = "CPU"
-    methods_to_optimize: List[AnyStr] = None
 
 
 def trace_and_save_torchscript(
@@ -68,7 +67,6 @@ def trace_and_save_torchscript(
                 optimization_blocklist=mobile_optimization.optimization_blocklist,
                 preserved_methods=mobile_optimization.preserved_methods,
                 backend=mobile_optimization.backend,
-                methods_to_optimize=mobile_optimization.methods_to_optimize,
             )
             with _synced_local_file("mobile_optimized.ptl") as lite_path:
                 liteopt_model._save_for_lite_interpreter(lite_path)