[BUGFIX] Added missing classes to InputButton component

Removed leftover from ModuleTemplateAPI cleanup

Releases: master
Resolves: #70329
Change-Id: I8345a6d8f38dddf8d26aa5971dffab8ddf462ee3
Reviewed-on: http://review.typo3.org/43765


Reviewed-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Tested-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>

typo3/sysext/backend/Classes/Template/Components/Buttons/InputButton.php

@@ -118,7 +118,7 @@ class InputButton extends AbstractButton implements ButtonInterface {
 		$content = '
 		<button name="' .
 			htmlspecialchars($this->getName()) .
-			'" class="' .
+			'" class="btn btn-default btn-sm ' .
 			htmlspecialchars($this->getClasses()) .
 			'" value="' .
 			htmlspecialchars($this->getValue()) .