fix: Remove a redundant try-catch block (#445)

lib/client.js

@@ -337,18 +337,12 @@ extend(Raven.prototype, {
  var eventId = this.generateEventId();
 
  if (this.stacktrace) {
- var ex;
- // Generate a "synthetic" stack trace
- try {
- throw new Error(message);
- } catch (ex1) {
- ex = ex1;
- }
+ var ex = new Error(message);
 
  utils.parseStack(
  ex,
  function(frames) {
- // We trim last frame, as it's our `throw new Error(message)` call itself, which is redundant
+ // We trim last frame, as it's our `new Error(message)` statement itself, which is redundant
  kwargs.stacktrace = {
  frames: frames.slice(0, -1)
  };