Duplicated covergroup templates with dfferent names

Right now there are duplicate coverpoint templates such as cr_vtype_agnostic_lmul2max_nomask.txt that exists simply as an artifact of testgen reading the covergroups to determine which tests to generate. In theory since the information is also in the testplan, testgen could directly read from the testplan removing the need for these special case coverpoints as they simply specify constraints to generate a legal test rather than different coverpoitns to be hit.