Remove deprecated ignore_pants_warnings in favor of `ignore_warning…

…s` (pantsbuild#12032)

[ci skip-rust]

src/python/pants/init/logging.py

@@ -135,7 +135,7 @@ def initialize_stdio(global_bootstrap_options: OptionValueContainer) -> Iterator
     print_stacktrace = global_bootstrap_options.print_stacktrace
 
     literal_filters = []
-    regex_filters = cast("list[str]", global_bootstrap_options.ignore_pants_warnings)
+    regex_filters = []
     for filt in cast("list[str]", global_bootstrap_options.ignore_warnings):
         if filt.startswith("$regex$"):
             regex_filters.append(strip_prefix(filt, "$regex$"))

src/python/pants/option/global_options.py

@@ -519,24 +519,6 @@ def register_bootstrap_options(cls, register):
                 "  ]"
             ),
         )
-        register(
-            "--ignore-pants-warnings",
-            type=list,
-            member_type=str,
-            default=[],
-            daemon=True,
-            advanced=True,
-            help="Regexps matching warning strings to ignore, e.g. "
-            '["DEPRECATED: the option `--my-opt` will be removed"]. The regex patterns will be '
-            "matched from the start of the warning string, and are case-insensitive.",
-            removal_version="2.6.0.dev0",
-            removal_hint=(
-                "Use the global option `--ignore-warnings` instead.\n\nUnlike this option, "
-                "`--ignore-warnings` uses literal string matches instead of regex patterns by "
-                "default. If you would still like to use a regex pattern, prefix the string with "
-                "`$regex$`."
-            ),
-        )
 
         register(
             "--pants-version",