remove i2c_button

Author: FoamyGuy

.gitmodules

@@ -139,9 +139,6 @@
 [submodule "libraries/drivers/trellism4_extended"]
 	path = libraries/drivers/trellism4_extended
 	url = https://github.com/arofarn/CircuitPython_TrellisM4_extended.git
-[submodule "libraries/drivers/i2c_button"]
-	path = libraries/drivers/i2c_button
-	url = https://github.com/gmparis/CircuitPython_I2C_Button.git
 [submodule "libraries/drivers/bluepad32"]
 	path = libraries/drivers/bluepad32
 	url = https://github.com/ricardoquesada/bluepad32-circuitpython.git