change: enable simplifiable-if-expression pylint checks (aws#926)

Author: knakad

.pylintrc

@@ -94,7 +94,6 @@ disable=
     inconsistent-return-statements, # TODO: Make returns consistent
     consider-merging-isinstance, # TODO: Merge isinstance where appropriate
     consider-using-in, # TODO: Consider merging comparisons with "in"
-    simplifiable-if-expression, # TODO: Simplify expressions
     too-many-public-methods, # TODO: Resolve
     ungrouped-imports, # TODO: Group imports
     consider-using-ternary, # TODO: Consider ternary expressions

src/sagemaker/session.py

@@ -1292,9 +1292,7 @@ def logs_for_job(  # noqa: C901 - suppress complexity warning for this method
         client = self.boto_session.client("logs", config=config)
         log_group = "/aws/sagemaker/TrainingJobs"
 
-        job_already_completed = (
-            True if status == "Completed" or status == "Failed" or status == "Stopped" else False
-        )
+        job_already_completed = status == "Completed" or status == "Failed" or status == "Stopped"
 
         state = LogState.TAILING if wait and not job_already_completed else LogState.COMPLETE
         dot = False