Revert "Add support for fully qualifying a template argument that is itself a template."
Revert "Add support for fully qualifying a template argument that is itself a template."

until we understand the negative side-effects.

This reverts commit 19f18e848d50bd44a011e8cf192f56d73e28bf65.

marsupial/cling,karies/cling,marsupial/cling,root-mirror/cling,karies/cling,marsupial/cling,root-mirror/cling,marsupial/cling,perovic/cling,root-mirror/cling,karies/cling,marsupial/cling,root-mirror/cling,root-mirror/cling,marsupial/cling,karies/cling,perovic/cling,perovic/cling,root-mirror/cling,karies/cling,perovic/cling,karies/cling,perovic/cling