Build broken due to FusePanicLogger.BatchForget redeclaration in api/common

[AlessandroPomponio]

Hello,

When trying to build the latest commit of goofys, the build fails with:

#0 27.86 # github.com/kahing/goofys/api/common
#0 27.86 api/common/panic_logger.go:69:27: FusePanicLogger.BatchForget redeclared in this block
#0 27.86        api/common/panic_logger.go:41:27: other declaration of BatchForget

The issue seems to be stemming from commit b667ee474bb7dc321eb0e069842053373fb2f615, which added another instance of FusePanicLogger.BatchForget