remove 2350 example, update comment in 2040 example

PiCowbell_HSTX_DVI_Examples/arduino_rp2040_hstx_dvi_cowbell/arduino_rp2040_hstx_dvi_cowbell.ino

@@ -11,9 +11,9 @@
 // Here's how a 320x240 16-bit color framebuffer is declared. Double-buffering
 // is not an option in 16-bit color mode, just not enough RAM; all drawing
 // operations are shown as they occur. Second argument is a hardware
-// configuration -- examples are written for Adafruit Feather RP2040 DVI, but
-// that's easily switched out for boards like the Pimoroni Pico DV (use
-// 'pimoroni_demo_hdmi_cfg') or Pico DVI Sock ('pico_sock_cfg').
+// configuration -- this example is written for Adafruit PiCowBell HSTX DVI,
+// and Raspberry Pi RP2040, but that's easily switched out for boards
+// like the Pimoroni Pico DV (use 'pimoroni_demo_hdmi_cfg') or Pico DVI Sock ('pico_sock_cfg').
 DVIGFX16 display(DVI_RES_320x240p60, adafruit_hstxdvibell_cfg);
 
 // A 400x240 mode is possible but pushes overclocking even higher than

PiCowbell_HSTX_DVI_Examples/arduino_rp2350_hstx_dvi_cowbell/arduino_rp2350_hstx_dvi_cowbell.ino

@@ -1,28 +0,0 @@
-// SPDX-FileCopyrightText: 2024 Michael Bell and Pimoroni Ltd
-//
-// SPDX-License-Identifier: MIT
-// 16-bit Adafruit_GFX-compatible framebuffer for RP2350 HSTX
-
-#include <Adafruit_dvhstx.h>
-
-// initialize display with HSTX DVI CowBell pinout
-DVHSTX16 display({14, 12, 18, 16}, DVHSTX_RESOLUTION_320x240);
-
-void setup() {
-  Serial.begin(115200);
-  // while(!Serial);
-  if (!display.begin()) { // Blink LED if insufficient RAM
-    pinMode(LED_BUILTIN, OUTPUT);
-    for (;;)
-      digitalWrite(LED_BUILTIN, (millis() / 500) & 1);
-  }
-  Serial.println("display initialized");
-}
-
-void loop() {
-  // Draw random lines
-  display.drawLine(random(display.width()), random(display.height()),
-                   random(display.width()), random(display.height()),
-                   random(65536));
-  sleep_ms(1);
-}