bts: update TODO comments; remove tests already covered

Change-Id: I35003e20b9b511e5d514549a9ad0acc32b243651
diff --git a/bts/BTS_Tests.ttcn b/bts/BTS_Tests.ttcn
index 0303a49..963a38d 100644
--- a/bts/BTS_Tests.ttcn
+++ b/bts/BTS_Tests.ttcn
@@ -4089,13 +4089,11 @@
 * MS Power Control
 * BS Power Control
 * Physical Context
-* SACCH info modify
-* CCCH Load Indication for PCH and RACH
-* Delete Indication on AGCH overflow
+* CCCH Load Indication for RACH
 * SMS Broadcast Req / Cmd / CBCH LOad Ind
 * RF resource ind
 * error handling
-* discriminator error
+** discriminator error
 ** type error
 ** sequence error
 ** IE duplicated?