chore: remove warning rules

semgrep-action doesn't consider severity, hence ignoring these rules for now.

.github/helper/semgrep_rules/security.yml

@@ -8,18 +8,3 @@ rules:
     dynamic content. Avoid it or use safe_eval().
   languages: [python]
   severity: ERROR
-
-- id: frappe-sqli-format-strings
-  patterns:
-    - pattern-inside: |
-        @frappe.whitelist()
-        def $FUNC(...):
-            ...
-    - pattern-either:
-        - pattern: frappe.db.sql("..." % ...)
-        - pattern: frappe.db.sql(f"...", ...)
-        - pattern: frappe.db.sql("...".format(...), ...)
-  message: |
-      Detected use of raw string formatting for SQL queries. This can lead to sql injection vulnerabilities. Refer security guidelines - https://github.com/frappe/erpnext/wiki/Code-Security-Guidelines
-  languages: [python]
-  severity: WARNING