Is there any easy way to remove configurations(VIP, POOL, Pool member, Irule,ssl profile) in LTM?

Do you have anything specific in mind? To merely delete objects with a minimal waste of time, I recommend you use TMSH.

 Delete LTM Virtual Server
 tmsh delete ltm virtual VirtualServerName
 Delete LTM Pool
 tmsh delete ltm pool PoolName
 Remove a particular member from pool
 tmsh modify ltm pool PoolName members delete { 1.1.1.1:80 }
 Delete LTM iRule
 tmsh delete ltm rule iRuleName
 Delete SSL profile (clientside). Older TMOS versions take in keyword clientssl as written together.
  tmsh delete ltm profile client-ssl ProfileName

For a more complex task, i.e. removing Pool Member 1.1.1.1:80 from dozens of different LTM pools, I would make my changes with a search & replace function directly in the config backup file (/config/bigip.conf), and later load in the changes with

tmsh load sys config