Revert "disable log collection temporarily"

This reverts commit 7bf7e06945.

Reason for revert:
Issue is fixed in https://crrev.com/c/4297356

Original change's description:
> disable log collection temporarily
>
> This is for b/270907050#comment2.
>
> Bug: b/270907050
> Change-Id: I4e816d38c1a0f379662533e278ab77cc46a8664a
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/4290688
> Commit-Queue: Dirk Pranke <dpranke@google.com>
> Auto-Submit: Takuto Ikuta <tikuta@chromium.org>
> Reviewed-by: Dirk Pranke <dpranke@google.com>
> Reviewed-by: Junji Watanabe <jwata@google.com>

Bug: b/270907050
Change-Id: I63a4e9a872708d57e8a782b59e43a06c884a92ae
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/4297698
Commit-Queue: Junji Watanabe <jwata@google.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Fumitoshi Ukai <ukai@google.com>
Reviewed-by: Dirk Pranke <dpranke@google.com>
Reviewed-by: Junji Watanabe <jwata@google.com>

ninjalog_uploader.py

@@ -197,10 +197,6 @@ def main():
     # Disable logging.
     logging.disable(logging.CRITICAL)
 
-  if True:  # This is for unreachable code lint warning.
-    # TODO(b/270907050): disable log collection temporarily.
-    return 0
-
   if not IsGoogler():
     return 0