pw_presubmit: Remove file summary
pw_presubmit: Remove file summary

The file summary is too verbose and is not helpful in its current state.

Change-Id: Ieb01e60c9e8b69af9940e72adb52a33fed1d3be3

google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed