chore(Tab): remove unused style

src/tabs/Title.js

@@ -42,10 +42,6 @@ export default createComponent({
         style.color = titleColor;
       }
 
-      if (this.scrollable && this.ellipsis) {
-        style.flexBasis = `${88 / this.swipeThreshold}%`;
-      }
-
       return style;
     },
   },
@@ -84,7 +80,6 @@ export default createComponent({
           bem({
             active: this.isActive,
             disabled: this.disabled,
-            complete: this.scrollable,
           }),
         ]}
         style={this.style}

src/tabs/index.less

@@ -53,12 +53,8 @@
 
     &--scrollable {
       .van-tab {
-        flex: 0 0 22%;
-
-        &--complete {
-          flex: 1 0 auto;
-          padding: 0 @padding-sm;
-        }
+        flex: 1 0 auto;
+        padding: 0 @padding-sm;
       }
 
       .van-tabs__nav {