Change redact -> remove for clarity

Addresses vector-im/riot-web#2814

Non-technical users may not understand what 'redact' means and can more easily understand what 'Remove' does. See discussion on vector-im/riot-web#2814 for more information.

Signed-off-by: Travis Ralston <travpc@gmail.com>

src/components/views/dialogs/ConfirmRedactDialog.js

@@ -42,7 +42,7 @@ export default React.createClass({
     render: function() {
         const BaseDialog = sdk.getComponent('views.dialogs.BaseDialog');
 
-        const title = "Confirm Redaction";
+        const title = "Confirm Removal";
 
         const confirmButtonClass = classnames({
             'mx_Dialog_primary': true,
@@ -55,12 +55,12 @@ export default React.createClass({
                 title={title}
             >
                 <div className="mx_Dialog_content">
-                    Are you sure you wish to redact (delete) this event?
-                    Note that if you redact a room name or topic change, it could undo the change.
+                    Are you sure you wish to remove (delete) this event?
+                    Note that if you delete a room name or topic change, it could undo the change.
                 </div>
                 <div className="mx_Dialog_buttons">
                     <button className={confirmButtonClass} onClick={this.onOk}>
-                        Redact
+                        Remove
                     </button>
 
                     <button onClick={this.onCancel}>

src/components/views/messages/UnknownBody.js

@@ -24,7 +24,7 @@ module.exports = React.createClass({
     render: function() {
         const text = this.props.mxEvent.getContent().body;
         return (
-            <span className="mx_UnknownBody" title="Redacted or unknown message type">
+            <span className="mx_UnknownBody" title="Removed or unknown message type">
                 {text}
             </span>
         );

src/components/views/rooms/RoomSettings.js

@@ -926,7 +926,7 @@ module.exports = React.createClass({
                         <PowerSelector ref="ban" value={ban_level} controlled={false} disabled={!can_change_levels || current_user_level < ban_level} onChange={this.onPowerLevelsChanged}/>
                     </div>
                     <div className="mx_RoomSettings_powerLevel">
-                        <span className="mx_RoomSettings_powerLevelKey">To redact messages, you must be a </span>
+                        <span className="mx_RoomSettings_powerLevelKey">To remove messages, you must be a </span>
                         <PowerSelector ref="redact" value={redact_level} controlled={false} disabled={!can_change_levels || current_user_level < redact_level} onChange={this.onPowerLevelsChanged}/>
                     </div>