Remove CRC16 from dumped mruby binary.

`calc_crc_16_ccitt()` consumes a lot of clock cycles in programs like
`mrbtest` which loads a lot of dumped binary. Error detection for flaky
channels should be done in the higher level.

Note: `mruby/c` should be updated to support this change.

1 files changed, 0 insertions, 39 deletions

diff --git a/src/crc.c b/src/crc.c
deleted file mode 100644
index 290b2ca0e..000000000
--- a/src/crc.c
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
-** crc.c - calculate CRC
-**
-** See Copyright Notice in mruby.h
-*/
-
-#include <limits.h>
-#include <stdint.h>
-#include <stddef.h>
-
-/* Calculate CRC (CRC-16-CCITT)
-**
-**  0000_0000_0000_0000_0000_0000_0000_0000
-**          ^|------- CRC -------|- work --|
-**        carry
-*/
-#define  CRC_16_CCITT       0x11021ul        /* x^16+x^12+x^5+1 */
-#define  CRC_XOR_PATTERN    (CRC_16_CCITT << 8)
-#define  CRC_CARRY_BIT      (0x01000000)
-
-uint16_t
-calc_crc_16_ccitt(const uint8_t *src, size_t nbytes, uint16_t crc)
-{
-  size_t ibyte;
-  uint32_t ibit;
-  uint32_t crcwk = crc << 8;
-
-  for (ibyte = 0; ibyte < nbytes; ibyte++) {
-    crcwk |= *src++;
-    for (ibit = 0; ibit < CHAR_BIT; ibit++) {
-      crcwk <<= 1;
-      if (crcwk & CRC_CARRY_BIT) {
-        crcwk ^= CRC_XOR_PATTERN;
-      }
-    }
-  }
-  return (uint16_t)(crcwk >> 8);
-}
-