delete outdated deprecations

python/ql/lib/semmle/python/dataflow/new/Regexp.qll

@@ -7,20 +7,6 @@ private import semmle.python.regex
 private import semmle.python.dataflow.new.DataFlow
 private import semmle.python.regexp.internal.RegExpTracking
 
-/**
- * Provides utility predicates related to regular expressions.
- */
-deprecated module RegExpPatterns {
-  /**
-   * Gets a pattern that matches common top-level domain names in lower case.
-   * DEPRECATED: use the similarly named predicate from `HostnameRegex` from the `regex` pack instead.
-   */
-  deprecated string getACommonTld() {
-    // according to ranking by http://google.com/search?q=site:.<<TLD>>
-    result = "(?:com|org|edu|gov|uk|net|io)(?![a-z0-9])"
-  }
-}
-
 /**
  * A node whose value may flow to a position where it is interpreted
  * as a part of a regular expression.

python/ql/src/Security/CWE-020/HostnameRegexpShared.qll

@@ -1,8 +0,0 @@
-/**
- * Provides predicates for reasoning about regular expressions
- * that match URLs and hostname patterns.
- */
-
-// HostnameRegexp should be used directly from the shared regex pack, and not from this file.
-deprecated private import semmle.python.security.regexp.HostnameRegex as Dep
-import Dep