[airflow] Remove airflow.utils.dag_parsing_context.get_parsing_context (AIR301) (astral-sh#17852)

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## Summary

<!-- What's the purpose of the change? What does it do, and why? -->
Remove `airflow.utils.dag_parsing_context.get_parsing_context` from
AIR301 as it has been moved to AIR311

## Test Plan

<!-- How was it tested? -->

the test fixture was updated in the previous PR

Author: Lee-W

crates/ruff_linter/src/rules/airflow/rules/removal_in_3.rs

@@ -710,11 +710,6 @@ fn check_name(checker: &Checker, expr: &Expr, range: TextRange) {
             // airflow.utils.dag_cycle_tester
             ["dag_cycle_tester", "test_cycle"] => Replacement::None,
 
-            // airflow.utils.dag_parsing_context
-            ["dag_parsing_context", "get_parsing_context"] => {
-                Replacement::Name("airflow.sdk.get_parsing_context")
-            }
-
             // airflow.utils.db
             ["db", "create_session"] => Replacement::None,