Revert "Loader: support json files where multiline strings are split as string-arrays"

This reverts commit 7255e20eee.

This change has some problems ... working on a better solution.

src/OpenStreetBrowserLoader.js

@@ -1,5 +1,4 @@
 var OverpassLayer = require('overpass-layer')
-var jsonMultilineStrings = require('./json-multiline-strings')
 
 function OpenStreetBrowserLoader () {
   this.types = {}
@@ -32,7 +31,6 @@ OpenStreetBrowserLoader.prototype.getCategory = function (id, callback) {
     }
 
     var data = JSON.parse(req.responseText)
-    data = jsonMultilineStrings.join(data)
 
     this.getCategoryFromData(id, data, function (err, category) {
       if (category) {

src/json-multiline-strings.js

@@ -1,31 +0,0 @@
-function isStringArray (arr) {
-  if (!Array.isArray(arr)) {
-    return false
-  }
-
-  var nonStringElements = arr.filter(function (x) {
-    return typeof x !== 'string'
-  })
-
-  if (nonStringElements.length) {
-    return false
-  }
-
-  return true
-}
-
-function join (data) {
-  for (var k in data) {
-    if (isStringArray(data[k])) {
-      data[k] = data[k].join('\n')
-    } else if (typeof data[k] === 'object') {
-      data[k] = join(data[k])
-    }
-  }
-
-  return data
-}
-
-module.exports = {
-  join: join
-}