Remove partial LSE

It has been disabled for a while and it has bit rotted

Bug: 298176183
Test: art/test/testrunner/testrunner.py --host --64 -b --optimizing
Test: m test-art-host-gtest-art_compiler_tests64
Change-Id: I4fcd8b3d18a3388e078b5cb3c340b2e270aefef7
30 files changed