diff --git a/javascript/ql/src/semmle/javascript/DOM.qll b/javascript/ql/src/semmle/javascript/DOM.qll
index a1facf39505..6ddd236a88b 100644
--- a/javascript/ql/src/semmle/javascript/DOM.qll
+++ b/javascript/ql/src/semmle/javascript/DOM.qll
@@ -346,13 +346,6 @@ module DOM {
           call.getNumArgument() = 1 and
           forex(InferredType t | t = call.getArgument(0).analyze().getAType() | t = TTNumber())
         )
-        or
-        // A `this` node from a callback given to a `$().each(callback)` call.
-        // purposely not using JQuery::MethodCall to avoid `jquery.each()`.
-        exists(DataFlow::CallNode eachCall | eachCall = JQuery::objectRef().getAMethodCall("each") |
-          this = DataFlow::thisNode(eachCall.getCallback(0).getFunction()) or
-          this = eachCall.getABoundCallbackParameter(0, 1)
-        )
       }
     }
   }
diff --git a/javascript/ql/src/semmle/javascript/frameworks/jQuery.qll b/javascript/ql/src/semmle/javascript/frameworks/jQuery.qll
index 5f5be4a2fc4..17babb912c0 100644
--- a/javascript/ql/src/semmle/javascript/frameworks/jQuery.qll
+++ b/javascript/ql/src/semmle/javascript/frameworks/jQuery.qll
@@ -533,14 +533,6 @@ module JQuery {
       }
     }
 
-    /**
-     * A `this` node in a JQuery plugin function, which is a JQuery object.
-     */
-    private class JQueryPluginThisObject extends Range {
-      JQueryPluginThisObject() {
-        this = DataFlow::thisNode(any(JQueryPluginMethod method).getFunction())
-      }
-    }
   }
 
   /** A source of jQuery objects from the AST-based `JQueryObject` class. */
diff --git a/javascript/ql/src/semmle/javascript/security/dataflow/Xss.qll b/javascript/ql/src/semmle/javascript/security/dataflow/Xss.qll
index ea911f95300..0a278ed339b 100644
--- a/javascript/ql/src/semmle/javascript/security/dataflow/Xss.qll
+++ b/javascript/ql/src/semmle/javascript/security/dataflow/Xss.qll
@@ -172,15 +172,6 @@ module DomBasedXss {
       this = any(Typeahead::TypeaheadSuggestionFunction f).getAReturn()
       or
       this = any(Handlebars::SafeString s).getAnArgument()
-      or
-      this = any(JQuery::MethodCall call | call.getMethodName() = "jGrowl").getArgument(0)
-      or
-      // A construction of a JSDOM object (server side DOM), where scripts are allowed.
-      exists(DataFlow::NewNode instance |
-        instance = API::moduleImport("jsdom").getMember("JSDOM").getInstance().getAnImmediateUse() and
-        this = instance.getArgument(0) and
-        instance.getOptionArgument(1, "runScripts").mayHaveStringValue("dangerously")
-      )
     }
   }