Drop unused schemas in package.xml

Due to b/272374495 parsing this file takes a long time.
This change makes getBootClasspath call in configuration phase
go from 2.97s to 2.31s.

Test: gradle profiler
Change-Id: I587515e60d49779dc7e518ae1c464687b5e5370b
1 file changed
tree: 70c1c63e4916d72cd8bd7040fd87e27728287a2e
  1. 34.0.0/