Revert "[BUGFIX] Trigger submit of RSA encrypted form properly"

This reverts commit 16b7d84.

Since the initial change for issue #76120 addressed the backend part
as well - which would not have been required, since the mentioned issue
was about the frontend behavior only, the change that has been reverted
now again has been considered as superfluous work-around.

Releases: master, 8.7
Resolves: #84503
Reverts: #84253
Change-Id: I2c676b038a10abd8d2c7fb330968657e8fbb81d3
Reviewed-on: https://review.typo3.org/56388
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Markus Klein <markus.klein@typo3.org>
Tested-by: Markus Klein <markus.klein@typo3.org>
Reviewed-by: Oliver Hader <oliver.hader@typo3.org>
Tested-by: Oliver Hader <oliver.hader@typo3.org>

typo3/sysext/rsaauth/Resources/Public/JavaScript/RsaEncryptionModule.js

@@ -116,7 +116,7 @@ define(['jquery', './RsaLibrary'], function($) {
       // Try to fetch the field which submitted the form
       var $currentField = RsaEncryption.$currentForm.find('input[type=submit]:focus,input[type=image]:focus,button:focus');
       if ($currentField.length === 1) {
-        RsaEncryption.$currentForm.trigger('submit');
+        $currentField.trigger('click');
       } else {
         // Create a hidden input field to fake pressing the submit button
         var name = 'commandLI',