diff --git a/csharp/ql/lib/semmle/code/csharp/ExprOrStmtParent.qll b/csharp/ql/lib/semmle/code/csharp/ExprOrStmtParent.qll
index ae9ed04e018..8102b4a0288 100644
--- a/csharp/ql/lib/semmle/code/csharp/ExprOrStmtParent.qll
+++ b/csharp/ql/lib/semmle/code/csharp/ExprOrStmtParent.qll
@@ -118,12 +118,6 @@ private module Cached {
     i = 0
   }
 
-  /**
-   * Use `expr_parent` instead.
-   */
-  cached
-  deprecated predicate expr_parent_adjusted(Expr child, int i, ControlFlowElement parent) { none() }
-
   private Expr getAChildExpr(ExprOrStmtParent parent) {
     result = parent.getAChildExpr() and
     not result = parent.(DeclarationWithGetSetAccessors).getExpressionBody()