Don't guard MathQuill.StaticMath(opts) behind interver

No need, not backcompat breaking change
diff --git a/src/commands/math.js b/src/commands/math.js
index 8cab99d..c3d0978 100644
--- a/src/commands/math.js
+++ b/src/commands/math.js
@@ -432,9 +432,7 @@
   return P(APIClasses.AbstractMathQuill, function(_, super_) {
     this.RootBlock = MathBlock;
     _.__mathquillify = function(opts, interfaceVersion) {
-      if (interfaceVersion > 1) {
-        this.config(opts);
-      }
+      this.config(opts);
       super_.__mathquillify.call(this, 'mq-math-mode');
       this.__controller.delegateMouseEvents();
       this.__controller.staticMathTextareaEvents();