Correctly adjust the backward reference of the next entry when deleting an entry.
Correctly adjust the backward reference of the next entry when deleting an entry.

alexeagle/TypeScript,microsoft/TypeScript,RyanCavanaugh/TypeScript,alexeagle/TypeScript,kitsonk/TypeScript,nojvek/TypeScript,Microsoft/TypeScript,minestarks/TypeScript,Microsoft/TypeScript,weswigham/TypeScript,RyanCavanaugh/TypeScript,nojvek/TypeScript,kpreisser/TypeScript,SaschaNaz/TypeScript,kpreisser/TypeScript,RyanCavanaugh/TypeScript,kitsonk/TypeScript,SaschaNaz/TypeScript,kitsonk/TypeScript,alexeagle/TypeScript,SaschaNaz/TypeScript,SaschaNaz/TypeScript,microsoft/TypeScript,nojvek/TypeScript,Microsoft/TypeScript,minestarks/TypeScript,nojvek/TypeScript,minestarks/TypeScript,weswigham/TypeScript,weswigham/TypeScript,kpreisser/TypeScript,microsoft/TypeScript