This is a series of patches (4/4) to unify assembly/disassembly of
recent AArch64 tests into a single file. The aim is to improve
consistency, so that all instructions and system registers are
thoroughly tested, and future test cases will be in a unified format.
This patch:
* removes .txt tests whose .s tests have functions
* makes the .s tests have a roundabout run line to test both encoding
and assembly
See also #146328, #146329 and #146330.
Co-authored-by: Virginia Cangelosi <virginia.cangelosi@arm.com>