remove unused display code

src/nrf52/UC1701Spi.cpp

@@ -1,53 +0,0 @@
-#include <OLEDDisplay.h>
-
-class UC1701Spi : public OLEDDisplay
-{
-  private:
-    uint8_t _rst;
-    uint8_t _dc;
-    uint8_t _cs;
-
-  public:
-    UC1701Spi() { setGeometry(GEOMETRY_128_64); }
-
-    bool connect()
-    {
-        /*
-        pinMode(_dc, OUTPUT);
-        pinMode(_cs, OUTPUT);
-        pinMode(_rst, OUTPUT);
-
-        SPI.begin();
-        SPI.setClockDivider(SPI_CLOCK_DIV2);
-
-        // Pulse Reset low for 10ms
-        digitalWrite(_rst, HIGH);
-        delay(1);
-        digitalWrite(_rst, LOW);
-        delay(10);
-        digitalWrite(_rst, HIGH);
-        */
-        return true;
-    }
-
-    void display(void) {}
-
-  private:
-};
-
-#include "variant.h"
-
-#ifdef ERC12864_CS
-#include <UC1701.h>
-static UC1701 lcd(PIN_SPI_SCK, PIN_SPI_MOSI, ERC12864_CS, ERC12864_CD);
-
-void testLCD()
-{
-    // PCD8544-compatible displays may have a different resolution...
-    lcd.begin();
-
-    // Write a piece of text on the first line...
-    lcd.setCursor(0, 0);
-    lcd.print("Hello, World!");
-}
-#endif