MultistepOperation: Don't need 'completed', just use `requestId === undefined` (#17173)
MultistepOperation: Don't need 'completed', just use `requestId === undefined` (#17173)

* MultistepOperation: Don't need 'completed', just use `requestId === undefined`

* Check for `requestId !== undefined`

nojvek/TypeScript,donaldpipowitch/TypeScript,weswigham/TypeScript,microsoft/TypeScript,SaschaNaz/TypeScript,alexeagle/TypeScript,kpreisser/TypeScript,weswigham/TypeScript,basarat/TypeScript,kitsonk/TypeScript,Microsoft/TypeScript,kpreisser/TypeScript,donaldpipowitch/TypeScript,RyanCavanaugh/TypeScript,SaschaNaz/TypeScript,kitsonk/TypeScript,synaptek/TypeScript,Eyas/TypeScript,nojvek/TypeScript,Eyas/TypeScript,synaptek/TypeScript,minestarks/TypeScript,RyanCavanaugh/TypeScript,TukekeSoft/TypeScript,Eyas/TypeScript,basarat/TypeScript,SaschaNaz/TypeScript,SaschaNaz/TypeScript,Microsoft/TypeScript,nojvek/TypeScript,minestarks/TypeScript,microsoft/TypeScript,alexeagle/TypeScript,weswigham/TypeScript,RyanCavanaugh/TypeScript,alexeagle/TypeScript,microsoft/TypeScript,Eyas/TypeScript,basarat/TypeScript,kpreisser/TypeScript,kitsonk/TypeScript,minestarks/TypeScript,TukekeSoft/TypeScript,basarat/TypeScript,synaptek/TypeScript,donaldpipowitch/TypeScript,Microsoft/TypeScript,TukekeSoft/TypeScript,donaldpipowitch/TypeScript,synaptek/TypeScript,nojvek/TypeScript