BOLTBuilder: disable nfc-stat-check step

This step is misbehaving and spams on every run:
https://lab.llvm.org/buildbot/#/builders/92/builds/12663

Disable it as stat-check currently has a very small SNR.

Author: aaupov

zorg/buildbot/builders/BOLTBuilder.py

@@ -134,7 +134,8 @@ def getBOLTCmakeBuildFactory(
                 warnOnFailure=True,
                 haltOnFailure=False,
                 flunkOnFailure=False,
-                doStepIf=FileExists('build/.llvm-bolt.diff'),
+                #doStepIf=FileExists('build/.llvm-bolt.diff'),
+                doStepIf=False,
                 env=env),
             ])