Remove incorrect i18n ID

Author: tkleinke

desktop/src/app/components/docedit/core/forms/date/date-value.html

@@ -24,7 +24,6 @@
 
     <button *ngIf="isNowButtonVisible()"
             class="btn btn-outline-primary now-button"
-            i18n="@@docedit.forms.date.now"
             ngbTooltip="Aktuelles Datum verwenden"
             i18n-ngbTooltip="@@docedit.forms.date.now.tooltip"
             placement="top"