Removes the contacts indicated by uids from this.
The custom_flags is used, if not null, only if the offline_flag is
e_cache_is_offline. Otherwise it's ignored. The length of the custom_flags should match the
length of uids, when not null.
| this |
An BookCache |
| uids |
a SList of uids indicating which contacts to remove |
| custom_flags |
an optional SList of custom flags for the |
| offline_flag |
one of CacheOfflineFlag, whether removing these contacts in offline |
| cancellable |
optional Cancellable object, or null |
|
true on success, otherwise false is returned and throws is set appropriately. |