Revert "Support mouse pointer on external displays (2/3)"

This reverts commit 84cdf9cc3b849679e6b4f6d3ccb66270f0abad2f.

Reason for revert: b/120864177

Test: Presubmit
Bug: b/120864177

Change-Id: Ia65e704169527b54cf1d1d470445f96a65fa0294
7 files changed