Remove unused headers.

Signed-off-by: Blaž Hrastnik <blaz@mxxn.io>
diff --git a/boot/bootutil/src/boot_record.c b/boot/bootutil/src/boot_record.c
index 0494972..69cf801 100644
--- a/boot/bootutil/src/boot_record.c
+++ b/boot/bootutil/src/boot_record.c
@@ -15,7 +15,6 @@
  * limitations under the License.
  */
 
-#include <stdio.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <limits.h>
diff --git a/boot/bootutil/src/encrypted.c b/boot/bootutil/src/encrypted.c
index 65199e5..6e0a70f 100644
--- a/boot/bootutil/src/encrypted.c
+++ b/boot/bootutil/src/encrypted.c
@@ -12,7 +12,6 @@
 #include <stddef.h>
 #include <inttypes.h>
 #include <string.h>
-#include <stdio.h>
 
 #if defined(MCUBOOT_ENCRYPT_RSA)
 #include "mbedtls/rsa.h"