platforms/stm32f7: remove GEPRC UART diagnostic

boards/geprc-f722-v2/Cargo.toml

@@ -10,10 +10,6 @@ build = "build.rs"
 [lints]
 workspace = true
 
-[features]
-firmware = []
-uart2-wire-test = ["firmware"]
-
 [dependencies]
 kaptan-board = { path = "../../libs/kaptan-board" }
 platform-stm32f7 = { path = "../../platforms/stm32f7" }
@@ -21,6 +17,5 @@ platform-stm32f7 = { path = "../../platforms/stm32f7" }
 [[bin]]
 name = "kaptan-geprc-f722-v2"
 path = "src/main.rs"
-required-features = ["firmware"]
 test = false
 bench = false