ref(issue search): Remove project allowlist option for fallback to truncation of group IDs in Snuba queries (#105665)

Follow-up to
getsentry/sentry-options-automator#6050.

Removing this option as it is no longer needed and we are enabling this
issue search fix for all projects.

Author: shashjar

src/sentry/options/defaults.py

@@ -3825,15 +3825,6 @@
     flags=FLAG_ALLOW_EMPTY | FLAG_AUTOMATOR_MODIFIABLE,
 )
 
-# Project ID allowlist to enable truncation of group IDs in Snuba query
-# when search filters are selective.
-register(
-    "snuba.search.truncate-group-ids-for-selective-filters-project-allowlist",
-    type=Sequence,
-    default=[],
-    flags=FLAG_ALLOW_EMPTY | FLAG_AUTOMATOR_MODIFIABLE,
-)
-
 # Option to enable truncation of group IDs in Snuba query
 # when search filters are selective.
 register(