I would not remove that TransCap modual. It may lead to failure of the ESC
You can shed weight by:
Shorting your ESC and Servo wires with a kit from Servo City (Crimp pins not solder)
Replacing all the screws with Titanium and Aluminum screws.
Replaceing the rear motor pods with the AE plastic left side and a milled out Magnesium right side.
Use 14ga or 16ga wire if current loads permit
Replace the servo with a lighter one (Karbonite or Ti gears vs brass and steel)
Use smaller battery bars. I believe deans 2.0 are lighter than SMC
Cut on your chassis
Use a smaller RX (I use the SR3500 from spektrum)
Use lower natural rubber tires, they weigh less