refactor: remove redundant type check (#1938)

Author: noritaka1166

src/utils.ts

@@ -18,7 +18,6 @@ const asymmetricMatcher =
 
 export function isAsymmeyricMatcher(expected: unknown): expected is ExpectWebdriverIO.PartialMatcher {
     return (
-        typeof expected === 'object' &&
         typeof expected === 'object' &&
         expected &&
         '$$typeof' in expected &&