remove unused "authorized-regexp" VTY command

This is another left-over VTY command from the OsmoNITB days.

If such functionality is desired, it must be implemented in OsmoHLR,
but not here.

Related: OS#2528
Change-Id: Icf0897c47388e49ba7886b55acc728a6f7d213fe
diff --git a/tests/msc_vlr/msc_vlr_test_hlr_timeout.err b/tests/msc_vlr/msc_vlr_test_hlr_timeout.err
index 1a5edd8..94cf2e6 100644
--- a/tests/msc_vlr/msc_vlr_test_hlr_timeout.err
+++ b/tests/msc_vlr/msc_vlr_test_hlr_timeout.err
@@ -80,7 +80,7 @@
 ===== [1] test_hlr_timeout_lu_auth_info(901700000004620): SUCCESS
 
 full talloc report on 'msgb' (total      0 bytes in   1 blocks)
-talloc_total_blocks(tall_bsc_ctx) == 8
+talloc_total_blocks(tall_bsc_ctx) == 7
 
 ===== [2] test_hlr_timeout_lu_upd_loc_result(901700000004620)...
 - Total time passed: 0.000000 s
@@ -183,8 +183,8 @@
 ===== [2] test_hlr_timeout_lu_upd_loc_result(901700000004620): SUCCESS
 
 full talloc report on 'msgb' (total      0 bytes in   1 blocks)
-talloc_total_blocks(tall_bsc_ctx) == 8
+talloc_total_blocks(tall_bsc_ctx) == 7
 
 full talloc report on 'msgb' (total      0 bytes in   1 blocks)
-talloc_total_blocks(tall_bsc_ctx) == 8
+talloc_total_blocks(tall_bsc_ctx) == 7