Rangeanalysis: Remove superfluous specificSsaRead.

shared/rangeanalysis/codeql/rangeanalysis/RangeAnalysis.qll

@@ -284,16 +284,6 @@ signature module LangSig<Semantic Sem, DeltaSig D> {
    */
   predicate ignoreZeroLowerBound(Sem::Expr e);
 
-  /**
-   * Adds additional results to `ssaRead()` that are specific to Java.
-   *
-   * This predicate handles propagation of offsets for post-increment and post-decrement expressions
-   * in exactly the same way as the old Java implementation. Once the new implementation matches the
-   * old one, we should remove this predicate and propagate deltas for all similar patterns, whether
-   * or not they come from a post-increment/decrement expression.
-   */
-  Sem::Expr specificSsaRead(Sem::SsaVariable v, D::Delta delta);
-
   /**
    * Holds if the value of `dest` is known to be `src + delta`.
    */