remove unnecessary bindings

src/components/alert/alert.ts

@@ -186,7 +186,7 @@ export default class SlAlert extends LitElement {
         aria-live="assertive"
         aria-atomic="true"
         aria-hidden=${this.open ? 'false' : 'true'}
-        @mousemove=${this.handleMouseMove.bind(this)}
+        @mousemove=${this.handleMouseMove}
       >
         <span part="icon" class="alert__icon">
           <slot name="icon"></slot>
@@ -203,7 +203,7 @@ export default class SlAlert extends LitElement {
                   exportparts="base:close-button"
                   name="x"
                   library="system"
-                  @click=${this.handleCloseClick.bind(this)}
+                  @click=${this.handleCloseClick}
                 ></sl-icon-button>
               </span>
             `

src/components/rating/rating.ts

@@ -219,7 +219,7 @@ export default class SlRating extends LitElement {
                   'rating__symbol--hover': this.isHovering && Math.ceil(displayValue) === index + 1
                 })}
                 role="presentation"
-                @mouseenter=${this.handleMouseEnter.bind(this)}
+                @mouseenter=${this.handleMouseEnter}
               >
                 ${unsafeHTML(this.getSymbol(index + 1))}
               </span>

src/components/textarea/textarea.ts

@@ -333,10 +333,10 @@ export default class SlTextarea extends LitElement {
                 hasHelpTextSlot: this.hasHelpTextSlot
               })
             )}
-            @change=${this.handleChange.bind(this)}
-            @input=${this.handleInput.bind(this)}
-            @focus=${this.handleFocus.bind(this)}
-            @blur=${this.handleBlur.bind(this)}
+            @change=${this.handleChange}
+            @input=${this.handleInput}
+            @focus=${this.handleFocus}
+            @blur=${this.handleBlur}
           ></textarea>
         </div>
       `

src/components/tooltip/tooltip.ts

@@ -311,7 +311,7 @@ export default class SlTooltip extends LitElement {
 
   render() {
     return html`
-      <slot @slotchange=${this.handleSlotChange.bind(this)}></slot>
+      <slot @slotchange=${this.handleSlotChange}></slot>
 
       <div class="tooltip-positioner">
         <div