Do you mean the interfaces of the removed line card is still showing in the configuration? If so this is normal behavior due to feature called "slot provisioning". Bug id CSCsb49891 is an enhancement to the IOS that clears the configuration of the removed line card or turns off the "slot provisioning".
router(config)#module ?
ContentServicesGateway Configure a CSG module
ContentSwitchingModule configure a CSM SLB module
clear-config To clear configuration when module is removed
provision Configure module provision status
router(config)#module clear-config
The above CLI knob is present in 12.2(18)SXF or above so in your case, you will not have the knob, you need to reload the switch to remove the removed line card's configuration.
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