remove error.h to work with musl libc

package/mtd/Makefile

@@ -5,7 +5,7 @@ include ${TOPDIR}/rules.mk
 
 PKG_NAME:=		mtd
 PKG_VERSION:=		1.0
-PKG_RELEASE:=		1
+PKG_RELEASE:=		2
 PKG_DESCR:=		MTD utility
 PKG_SECTION:=		fs
 

package/mtd/src/mtd.c

@@ -37,7 +37,6 @@
 #include <stdint.h>
 #include <fcntl.h>
 #include <errno.h>
-#include <error.h>
 #include <err.h>
 #include <time.h>
 #include <string.h>