style: fix Menu item background transition style (#50624)

components/menu/style/vertical.ts

@@ -128,9 +128,6 @@ const getVerticalStyle: GenerateStyle<MenuToken> = (token) => {
               `border-color ${motionDurationSlow}`,
               `background ${motionDurationSlow}`,
               `padding ${motionDurationMid} ${motionEaseOut}`,
-              `padding-inline calc(50% - ${unit(token.calc(fontSizeLG).div(2).equal())} - ${unit(
-                itemMarginInline,
-              )})`,
             ].join(','),
 
             [`> ${componentCls}-title-content`]: {