fix(steps): [steps] 修复条形步骤条小灰点 (#2459)

Author: chenxi-20

packages/theme/src/steps/index.less

@@ -127,7 +127,6 @@
     margin: 0 1px;
     height: 32px;
     display: flex;
-    border-radius: 2px;
     overflow: hidden;
     cursor: pointer;
     color: var(--tv-Steps-text-color);