Revert "add support for the m7 (all variants)"

This reverts commit 60e004b762c2afd867e95b025609a054ea18246f.
Revert "Update default.xml"

This reverts commit 8fc91b58690d4bcebfe80bd83302de78cbaf6314.
Revert "Update default.xml"

This reverts commit 967292e069ffb424648abdfce77e343bf1c9e8e7.
Revert "Update default.xml"

This reverts commit 04f4473c8420e0f2813746f9586b61cb6cf36285.