cleanup(rustdoc): remove unused function getObjectNameById

This function was used in an earlier version, when idx's were used
to serialize function inputs and outputs. That's not done any more,
so removed the JS-side support for it.

Author: notriddle

src/librustdoc/html/static/js/search.js

@@ -289,13 +289,6 @@ window.initSearch = function(rawSearchIndex) {
             };
         }
 
-        function getObjectNameFromId(id) {
-            if (typeof id === "number") {
-                return searchIndex[id].name;
-            }
-            return id;
-        }
-
         function checkGenerics(obj, val) {
             // The names match, but we need to be sure that all generics kinda
             // match as well.
@@ -306,10 +299,10 @@ window.initSearch = function(rawSearchIndex) {
                     var elems = Object.create(null);
                     var elength = obj[GENERICS_DATA].length;
                     for (var x = 0; x < elength; ++x) {
-                        if (!elems[getObjectNameFromId(obj[GENERICS_DATA][x])]) {
-                            elems[getObjectNameFromId(obj[GENERICS_DATA][x])] = 0;
+                        if (!elems[obj[GENERICS_DATA][x]]) {
+                            elems[obj[GENERICS_DATA][x]] = 0;
                         }
-                        elems[getObjectNameFromId(obj[GENERICS_DATA][x])] += 1;
+                        elems[obj[GENERICS_DATA][x]] += 1;
                     }
                     var total = 0;
                     var done = 0;
@@ -318,7 +311,7 @@ window.initSearch = function(rawSearchIndex) {
                     var vlength = val.generics.length;
                     for (x = 0; x < vlength; ++x) {
                         var lev = MAX_LEV_DISTANCE + 1;
-                        var firstGeneric = getObjectNameFromId(val.generics[x]);
+                        var firstGeneric = val.generics[x];
                         var match = null;
                         if (elems[firstGeneric]) {
                             match = firstGeneric;
@@ -361,16 +354,16 @@ window.initSearch = function(rawSearchIndex) {
                             var elems = Object.create(null);
                             len = obj[GENERICS_DATA].length;
                             for (x = 0; x < len; ++x) {
-                                if (!elems[getObjectNameFromId(obj[GENERICS_DATA][x])]) {
-                                    elems[getObjectNameFromId(obj[GENERICS_DATA][x])] = 0;
+                                if (!elems[obj[GENERICS_DATA][x]]) {
+                                    elems[obj[GENERICS_DATA][x]] = 0;
                                 }
-                                elems[getObjectNameFromId(obj[GENERICS_DATA][x])] += 1;
+                                elems[obj[GENERICS_DATA][x]] += 1;
                             }
 
                             var allFound = true;
                             len = val.generics.length;
                             for (x = 0; x < len; ++x) {
-                                firstGeneric = getObjectNameFromId(val.generics[x]);
+                                firstGeneric = val.generics[x];
                                 if (elems[firstGeneric]) {
                                     elems[firstGeneric] -= 1;
                                 } else {