InnoDB: remove redundant functions mach_write() and mach_read()

innobase/include/mach0data.h:
  Remove mach_write() and mach_read()
innobase/include/mach0data.ic:
  Remove mach_write() and mach_read()
innobase/mem/mem0dbg.c:
  Replace mach_write() with mach_write_to_4()
  Replace mach_read() with mach_read_from_4()

innobase/include/mach0data.h

@@ -88,25 +88,6 @@ mach_read_from_4(
 /*=============*/
 			/* out: ulint integer */
 	byte*   b);      /* in: pointer to four bytes */
-/***********************************************************
-The following function is used to store data from a ulint to memory
-in standard order:
-we store the most significant byte to the lowest address. */
-UNIV_INLINE
-void 
-mach_write(
-/*=======*/
-	byte*   b,     /* in: pointer to sizeof(ulint) bytes where to store */
-	ulint   n);      /* in: ulint integer to be stored */ 
-/************************************************************
-The following function is used to fetch data from memory to a ulint.
-The most significant byte is at the lowest address. */
-UNIV_INLINE
-ulint 
-mach_read(
-/*======*/
-			/* out: ulint integer */
-	byte*   b);      /* in: pointer to sizeof(ulint) bytes */
 /*************************************************************
 Writes a ulint in a compressed form. */
 UNIV_INLINE

innobase/include/mach0data.ic

@@ -167,44 +167,6 @@ mach_read_from_4(
 #endif
 }
 
-/***********************************************************
-The following function is used to store data from a ulint to memory
-in standard order: we store the most significant byte to the lowest
-address. */
-UNIV_INLINE
-void 
-mach_write(
-/*=======*/
-	byte*   b,      /* in: pointer to 4 bytes where to store */
-	ulint   n)      /* in: ulint integer to be stored */ 
-{
-	ut_ad(b);
-
-	b[0] = (byte)(n >> 24);
-	b[1] = (byte)(n >> 16);
-	b[2] = (byte)(n >> 8);
-	b[3] = (byte)n;
-}
-
-/************************************************************
-The following function is used to fetch data from memory to a ulint.
-The most significant byte is at the lowest address. */
-UNIV_INLINE
-ulint 
-mach_read(
-/*======*/
-			/* out: ulint integer */
-	byte*   b)      /* in: pointer to 4 bytes */
-{
-	ut_ad(b);
-
-	return( ((ulint)(b[0]) << 24)
-		+ ((ulint)(b[1]) << 16)
-		+ ((ulint)(b[2]) << 8)
-		+ (ulint)(b[3])
-	      );
-}
-
 /*************************************************************
 Writes a ulint in a compressed form where the first byte codes the
 length of the stored ulint. We look at the most significant bits of

innobase/mem/mem0dbg.c

@@ -73,37 +73,37 @@ mem_field_header_set_len(byte* field, ulint len)
 {
 	ut_ad(len >= 0);
 
-	mach_write(field - 2 * sizeof(ulint), len);
+	mach_write_to_4(field - 2 * sizeof(ulint), len);
 }
 
 ulint
 mem_field_header_get_len(byte* field)
 {
-	return(mach_read(field - 2 * sizeof(ulint)));
+	return(mach_read_from_4(field - 2 * sizeof(ulint)));
 }
 
 void
 mem_field_header_set_check(byte* field, ulint check)
 {
-	mach_write(field - sizeof(ulint), check);
+	mach_write_to_4(field - sizeof(ulint), check);
 }
 
 ulint
 mem_field_header_get_check(byte* field)
 {
-	return(mach_read(field - sizeof(ulint)));
+	return(mach_read_from_4(field - sizeof(ulint)));
 }
 
 void
 mem_field_trailer_set_check(byte* field, ulint check)
 {
-	mach_write(field + mem_field_header_get_len(field), check);
+	mach_write_to_4(field + mem_field_header_get_len(field), check);
 }
 
 ulint
 mem_field_trailer_get_check(byte* field)
 {
-	return(mach_read(field +
+	return(mach_read_from_4(field +
 			mem_field_header_get_len(field)));
 }