fix(css): remove unnecessary display flex if not legacy file

Author: seejamescode

examples/bootstrap/css-gridish/bootstrap-grid.sketch

@@ -11,7 +11,7 @@
   <meta property="og:type" content="website">
   <meta property="og:url" content="https://ibm.github.io/css-gridish/">
   <meta name="twitter:card" content="summary_large_image">
-  <link href="./examples/carbon/css-gridish/css/bx-grid.min.css" rel="stylesheet">
+  <link href="./examples/carbon/css-gridish/css/bx-grid-legacy.min.css" rel="stylesheet">
 
   <style>
     body {

examples/carbon/css-gridish/bx-grid.sketch

@@ -1,6 +1,6 @@
 {
   "name": "css-gridish",
-  "version": "1.0.2",
+  "version": "1.0.3",
   "description":
     "Automatically build your grid design’s CSS Grid code, CSS Flexbox fallback code, Sketch artboards, and Chrome extension.",
   "engines": {