Fix memory leak in RM_UnregisterCommandFilter().
Fix memory leak in RM_UnregisterCommandFilter().

soloestoy/redis,antirez/redis,pmem/redis,neomantra/redis,soloestoy/redis,yossigo/redis,charsyam/redis,ctripcorp/redis,yossigo/redis,oranagra/redis,pmem/redis,ctripcorp/redis,PKRoma/redis,ctripcorp/redis,charsyam/redis,soveran/redis,pmem/redis,charsyam/redis,yossigo/redis,charsyam/redis,neomantra/redis,PKRoma/redis,neomantra/redis,antirez/redis,ofirluzon/redis,oranagra/redis,soloestoy/redis,ofirluzon/redis,ofirluzon/redis,neomantra/redis,charsyam/redis,ofirluzon/redis,oranagra/redis,yossigo/redis,soveran/redis,soloestoy/redis,antirez/redis,yossigo/redis,neomantra/redis,ctripcorp/redis,PKRoma/redis,pmem/redis,PKRoma/redis,soveran/redis,ofirluzon/redis,antirez/redis,soveran/redis,soloestoy/redis,oranagra/redis,oranagra/redis,PKRoma/redis