remove_target_groups_from_campaign

Remove targeting groups from one or more channels in an existing campaign.

                Use this tool to detach a named Targeting Group from a channel (e.g. remove
                "Tech Decision Makers" from LINKEDIN). Channel + targeting-group IDs are resolved
                internally — you only need the channel type and the targeting group name. (Targeting
                groups are NOT audiences — to remove a standard audience use
                remove_audiences_from_campaign.)

                Works on both campaign structures. On a Channel-First / Native (N×N×N) campaign the
                targeting group is cleared from its WizNativeAdContainer.targetingGroupId; any
                container then left with no asset at all is dropped. On Precision/METADATA it uses the
                legacy group delete.

                KEYWORDS: remove, delete, targeting group, target group, channel, campaign

                RESPONSE:
                - Returns the refreshed campaign state plus a removal_results list with one
                  entry per requested removal recording its success or error. ALWAYS check
                  removal_results — a partial failure (e.g. one of two names not found) still
                  returns normally, so report only what actually came back successful.

                REQUIRED PARAMETERS:
                - campaign_id: Campaign ID (numeric identifier)
                - channel_target_groups: Object mapping channel type → list of targeting group names

                EXAMPLE:
                remove_target_groups_from_campaign({
                    "campaign_id": 42545,
                    "channel_target_groups": {"LINKEDIN": ["Tech Decision Makers"]}
                })