Apply suggestions from code review

Co-authored-by: Anders Schack-Mulligen <aschackmull@users.noreply.github.com>

Author: hvitved

csharp/ql/lib/semmle/code/csharp/dataflow/internal/FlowSummaryImpl.qll

@@ -958,7 +958,6 @@ module Private {
 
     query predicate edges(NodeOrCall a, NodeOrCall b, string key, string value) {
       key = "semmle.label" and
-      edgesComponent(a, b, _) and
       value = strictconcat(string s | edgesComponent(a, b, s) | s, " / ")
     }
   }

java/ql/test/library-tests/dataflow/callback-dispatch/A.java

@@ -179,7 +179,7 @@ static void applyConsumer1Field1Field2(A a1, A a2, Consumer1 con) {
 
   void foo3() {
     A a1 = new A();
-    a1.field1 = source(1);
+    a1.field1 = source(20);
     A a2 = new A();
     applyConsumer1Field1Field2(a1, a2, p -> {
       sink(p); // MISSING FLOW