Rust: Remove some predicates

Author: hvitved

rust/ql/lib/codeql/rust/elements/internal/CallExprImpl.qll

@@ -44,12 +44,6 @@ module Impl {
     override string toStringImpl() { result = this.getFunction().toAbbreviatedString() + "(...)" }
 
     override Expr getSyntacticPositionalArgument(int i) { result = getSyntacticArg(this, i) }
-
-    // todo: remove once internal query has been updated
-    Expr getArg(int i) { result = getSyntacticArg(this, i) }
-
-    // todo: remove once internal query has been updated
-    int getNumberOfArgs() { result = this.getNumberOfSyntacticArguments() }
   }
 
   /**

rust/ql/lib/codeql/rust/elements/internal/CallImpl.qll

@@ -39,9 +39,6 @@ module Impl {
     /** Gets an argument of this call. */
     Expr getAnArgument() { result = this.getArgument(_) }
 
-    // todo: remove once internal query has been updated
-    Expr getReceiver() { none() }
-
     /**
      * Gets the `i`th positional argument of this call.
      *
@@ -71,9 +68,6 @@ module Impl {
     /** Gets the name of the function called, if any. */
     string getTargetName() { result = this.getStaticTarget().getName().getText() }
 
-    // todo: remove once internal query has been updated
-    string getMethodName() { result = this.getTargetName() }
-
     /** Gets a runtime target of this call, if any. */
     pragma[nomagic]
     Function getARuntimeTarget() {
@@ -110,6 +104,6 @@ module Impl {
      * x[y];              // `x` is receiver
      * ```
      */
-    override Expr getReceiver() { none() }
+    Expr getReceiver() { none() }
   }
 }