undoing stylesheet change + moving theme changes to instance config

inc/config.php

@@ -930,8 +930,7 @@
 	$config['stylesheets']['Yotsuba B'] = ''; // Default; there is no additional/custom stylesheet for this.
 	$config['stylesheets']['Yotsuba'] = 'yotsuba.css';
 	// $config['stylesheets']['Futaba'] = 'futaba.css';
-	$config['stylesheets']['Dark'] = 'dark.css';
-	$config['stylesheets']['Dark Red'] = 'dark_red.css';
+	// $config['stylesheets']['Dark'] = 'dark.css';
 
 	// The prefix for each stylesheet URI. Defaults to $config['root']/stylesheets/
 	// $config['uri_stylesheets'] = 'http://static.example.org/stylesheets/';

inc/instance-config.php

@@ -36,6 +36,8 @@
 	$config['root'] = '/';
 	$config['secure_trip_salt'] = 'ODQ2NDM0ODlmMmRhNzk2M2EyNjJlOW';
 
-	$config['thumb_method'] = 'gm+gifsicle';
-	$config['gnu_md5'] = '1';
+	$config['thumb_method'] = 'gm+gifsicle';
+	$config['gnu_md5'] = '1';
 
+	$config['stylesheets']['Dark'] = 'dark.css';
+	$config['stylesheets']['Dark Red'] = 'dark_red.css';

stylesheets/style.css

@@ -1953,11 +1953,4 @@ div.mix {
 
 footer {
  margin-bottom: 50px;
-}
-
-@media (max-width:768px) {
-  #sidebar{display:none;}
-  iframe#main{left: 0; border-left:none; width:100%;}
-  .bar.bottom{opacity:0.8;}
-  footer p.unimportant{display:none;}
 }