Can someone tell me how to take PokeGear out of the Menu, and take the Map from the Summary ?
The Pokégear will only appear in the pause menu if the player has it. That is, if you've set "$Trainer.pokegear=true" at any point. Just don't do that, and the Pokégear option won't appear in the pause menu.
If you just want to disable the Pokégear option for a short while, set it to false at the start of that while, and make it true again at the end of it. Easy enough.
Note that keeping this setting as false doesn't mean you can never use the Pokégear. The setting is only used to determine whether it can be accessed from particular places, i.e. from the pause menu. You can make your own things (like a Key Item) to access it instead, and it'll work.
I don't know what you mean about the map in the summary. You mean remove it from the Pokégear menu? If so, then you'll have to edit the Pokegear script to remove the parts relating to the map. Those parts include the selectable option (line 22; comment out), the map icons (lines 37-40; comment out), line 104 (comment out), what happens when each option is selected (lines 130-153; change these), what happens when you click on an option (lines 176-194; change these) and what information is shown when you select each option (lines 200-207; change these).
All you really need to do is comment out/change all those lines as directed, and it should work.
For the "change these" lines, the radio is now command 0, the phone is command 1 and exit is command 2 (instead of being 1, 2 and 3 respectively, as the map used to be command 0). Make sure that when you highlight/select one of those options, it does the appropriate thing.
I also assume you'll have some other way to open the Pokégear, since you asked how to disable it from the pause menu, e.g. a Key Item.