MOBILE-3320 workshop: Remove unneeded ion-list attributes

src/addons/mod/workshop/pages/assessment/assessment.html

@@ -53,7 +53,7 @@
             [access]="access" [assessmentId]="assessmentId" [userId]="profile && profile.id" [strategy]="strategy">
         </addon-mod-workshop-assessment-strategy>
 
-        <form ion-list [formGroup]="evaluateForm" *ngIf="evaluating" #evaluateFormEl>
+        <form [formGroup]="evaluateForm" *ngIf="evaluating" #evaluateFormEl>
             <ion-item class="ion-text-wrap">
                 <ion-label><h2>{{ 'addon.mod_workshop.assessmentsettings' | translate }}</h2></ion-label>
             </ion-item>

src/addons/mod/workshop/pages/edit-submission/edit-submission.html

@@ -13,7 +13,7 @@
 </ion-header>
 <ion-content>
     <core-loading [hideUntil]="loaded">
-        <form ion-list [formGroup]="editForm" *ngIf="workshop" #editFormEl>
+        <form [formGroup]="editForm" *ngIf="workshop" #editFormEl>
             <ion-item class="ion-text-wrap">
                 <ion-label position="stacked">
                     <span core-mark-required="true">

src/addons/mod/workshop/pages/submission/submission.html

@@ -97,7 +97,7 @@
             </addon-mod-workshop-assessment>
         </ion-list>
 
-        <form ion-list [formGroup]="feedbackForm" *ngIf="canAddFeedback && submission" #feedbackFormEl>
+        <form [formGroup]="feedbackForm" *ngIf="canAddFeedback && submission" #feedbackFormEl>
             <ion-item class="ion-text-wrap">
                 <ion-label>
                     <h2>{{ 'addon.mod_workshop.feedbackauthor' | translate }}</h2>