chore: remove code handling response JSON parsing errors

If GitHub sends us corrupt JSON, we have whole different kind of problems. This very much looks like code that was created because in theory it could happen, but even if it does, it will throw an 500 error which is what we’ll get for corrupt JSON anyway

Author: gr2m

lib/index.js

@@ -818,26 +818,17 @@ var Client = module.exports = function (config) {
         return self.sendError(err, msg, null, callback)
       }
 
-      var ret
-      try {
-        var data = res.data
+      var data = res.data
 
-        var contentType = res.headers['content-type']
-        if (contentType && contentType.indexOf('application/json') !== -1) {
-          data = res.data && JSON.parse(res.data)
-        }
-        ret = {data: data}
-      } catch (ex) {
-        if (callback) {
-          callback(new error.InternalServerError(ex.message), res)
-        }
-        return
+      var contentType = res.headers['content-type']
+      if (contentType && contentType.indexOf('application/json') !== -1) {
+        data = res.data && JSON.parse(res.data)
       }
-
-      if (!ret) {
-        ret = {}
+      var ret = {
+        data: data,
+        meta: {}
       }
-      ret.meta = {}
+
       self.responseHeaders.forEach(function (header) {
         if (res.headers[header]) {
           ret.meta[header] = res.headers[header]