Phase out config_roundedCornerMultipleRadius related config from

SystemUI

Remove config_roundedCornerMultipleRadius,
config_roundedCornerMultipleRadiusSecondary
and config_roundedCornerMultipleRadiusArray config from SystemUI.

Bug: 224688507

Test: Build ROM and pass presubmit test
Test: atest SystemUITests
Change-Id: I2263420c2c9c27a163fd04003015079407b5c9cd