ANDROID: sched/fair: Remove duplicated trace function

trace_android_rvh_attach_entity_load_avg is added twice during code
merge, so remove it.

Bug: 275023187
Fixes: cac3a605 Merge 64f18041 ("Merge branch 'android13-5.10'
into branch 'android13-5.10-lts'") into android13-5.10-lts
Change-Id: I800741381ea0d938e840e5cb32d4d02b40e193cc
Signed-off-by: Rick Yiu <rickyiu@google.com>