examples(pygamer): Remove neopixel examples

Issues around the clockv2 transition and the current state of neopixel
drivers makes these examples untenable.  See:
#752

Author: rnd-ash

boards/pygamer/Cargo.toml

@@ -83,26 +83,6 @@ name = "clock_out"
 [[example]]
 name = "ferris_img"
 
-[[example]]
-name = "neopixel_adc_battery"
-required-features = ["neopixel-spi"]
-
-[[example]]
-name = "neopixel_adc_light"
-required-features = ["neopixel-spi"]
-
-[[example]]
-name = "neopixel_button"
-required-features = ["neopixel-spi"]
-
-[[example]]
-name = "neopixel_easing"
-required-features = ["neopixel-spi"]
-
-[[example]]
-name = "neopixel_rainbow"
-required-features = ["neopixel-spi"]
-
 [[example]]
 name = "pwm_tc4"