SITL: removed TA_ from whitelist #44118

Job	Run time
build (base)	2m 11s
build-gcc-heli	2m 12s
build (clang)	2m 6s
autotest-heli (sitltest-heli)	10m 16s
autotest (sitltest-copter-tests1b)	9m 28s
autotest (sitltest-copter-tests1c)	12m 52s
autotest (sitltest-copter-tests2a)	8m 46s
autotest (sitltest-copter-tests1a)	7m 33s
autotest (sitltest-copter-tests1d)	9m 5s
autotest (sitltest-copter-tests1e)	9m 40s
autotest (sitltest-copter-tests2b)	32m 36s
	1h 46m 45s

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