sPFFramework/src/main/java/it/polimi/spf/framework/profile/SPFProfileManager.java
public boolean removeGroupFromField(ProfileField<?> field, String group, SPFPersona persona) {
		return mProfileTable.removeCircleFromField(group, field, persona);
	}
public boolean removeGroupFromField(ProfileField<?> field, String group, SPFPersona persona) {
		return mProfileTable.removeCircleFromField(group, field, persona);
	}
Remove a circle from a specified profile field.

@param field
the {@link ProfileField} to modify
@param group
- the circle to add
@param persona
- the {@link SPFPersona} to modify
@return true if the operation was successful