Remove old binder interface entry for keystore2

Now that keystore2 is a VNDK stable interface, we need to remove the
legacy unqualified interface from the keystore service context.

Test: Compile, boot, and ensure no SELinux violations for keystore2 service
Change-Id: I770c08eae9690b0dc0e2bae86c9ef72f9540d2f4
1 file changed