remove dead code

src/ice_fpga.c

@@ -1,18 +1,18 @@
 /*
  * MIT License
- * 
+ *
  * Copyright (c) 2023 tinyVision.ai
- * 
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
- * 
+ *
  * The above copyright notice and this permission notice shall be included in all
  * copies or substantial portions of the Software.
- * 
+ *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
@@ -72,49 +72,3 @@ bool ice_fpga_start(void) {
     }
     return true;
 }
-
-// https://github.com/xobs/spibone
-
-// Read protocol:
-//     Write: 01 | AA | AA | AA | AA
-//     [Wishbone Operation]
-//     Read:  01 | VV | VV | VV | VV
-void ice_fpga_read(uint32_t addr, uint8_t *data, size_t data_size) {
-    uint8_t header[5] = {
-        0x01,
-        (addr >> 24) & 0xFF,
-        (addr >> 16) & 0xFF,
-        (addr >> 8) & 0xFF,
-        (addr >> 0) & 0xFF,
-    };
-    uint8_t byte;
-
-    ice_spi_chip_select(ICE_FPGA_CSN_PIN);
-    ice_spi_write_blocking(header, sizeof header);
-    while (ice_spi_read_blocking(&byte, 1), byte == 0xFF);
-    assert(byte == 0x01);
-    ice_spi_read_blocking(data, data_size);
-    ice_spi_chip_deselect(ICE_FPGA_CSN_PIN);
-}
-
-// Write protocol:
-//     Write: 00 | AA | AA | AA | AA | VV | VV | VV | VV
-//     [Wishbone Operation]
-//     Read:  00
-void ice_fpga_write(uint32_t addr, const uint8_t *data, size_t data_size) {
-    uint8_t header[5] = {
-        0x00,
-        (addr >> 24) & 0xFF,
-        (addr >> 16) & 0xFF,
-        (addr >> 8) & 0xFF,
-        (addr >> 0) & 0xFF,
-    };
-    uint8_t byte;
-
-    ice_spi_chip_select(ICE_FPGA_CSN_PIN);
-    ice_spi_write_blocking(header, sizeof header);
-    ice_spi_write_blocking(data, data_size);
-    while (ice_spi_read_blocking(&byte, 1), byte == 0xFF);
-    ice_spi_chip_deselect(ICE_FPGA_CSN_PIN);
-    assert(byte == 0x00);
-}