Revert D64438144: Log is_forward field to dynamo_compile scuba table

Differential Revision:
D64438144

Original commit changeset: 87a5518d4d93

Original Phabricator Diff: D64438144

fbshipit-source-id: 3acb559a632ce345a1c3c88edc9007c0a9e5d40c

Author: huydhn

userbenchmark/dynamo/dynamobench/_dynamo/utils.py

@@ -764,7 +764,6 @@ def proxy_args_kwargs(args, kwargs):
 
 @dataclasses.dataclass
 class CompilationMetrics:
-    is_forward: bool = dataclasses.field(default=True, init=False)
     compile_id: str
     frame_key: str
     co_name: str
@@ -805,7 +804,6 @@ class CompilationMetrics:
 
 @dataclasses.dataclass
 class BwdCompilationMetrics:
-    is_forward: bool = dataclasses.field(default=False, init=False)
     compile_id: str
     inductor_compile_time_s: Optional[float]
     code_gen_time_s: Optional[float]