graphics.composer@2.2 rc remove interface decls

Since vendors here add additional services to this service,
vts_ibase_test fails on some devices. This test, for sanity,
requires that if a service has any interface declaration, it has
all relevant interface declarations. These interface entries are
declared but unused here.

Fixes: 152375928
Test: vts_ibase_test on sargo
Change-Id: I2d3225b42824f0befb55d8c93a578e910a05e4a1