Minor style improvements

Signed-off-by: Chris Jones <christopher.jones@arm.com>
diff --git a/include/mbedtls/x509_crl.h b/include/mbedtls/x509_crl.h
index f89547c..fcaa149 100644
--- a/include/mbedtls/x509_crl.h
+++ b/include/mbedtls/x509_crl.h
@@ -148,7 +148,7 @@
  */
 int mbedtls_x509_crl_info( char *buf, size_t size, const char *prefix,
                    const mbedtls_x509_crl *crl );
-#endif
+#endif /* !MBEDTLS_X509_REMOVE_INFO */
 
 /**
  * \brief          Initialize a CRL (chain)
diff --git a/include/mbedtls/x509_crt.h b/include/mbedtls/x509_crt.h
index 6906585..23a20d1 100644
--- a/include/mbedtls/x509_crt.h
+++ b/include/mbedtls/x509_crt.h
@@ -593,9 +593,7 @@
  */
 int mbedtls_x509_crt_info( char *buf, size_t size, const char *prefix,
                    const mbedtls_x509_crt *crt );
-#endif
 
-#if !defined(MBEDTLS_X509_REMOVE_INFO)
 /**
  * \brief          Returns an informational string about the
  *                 verification status of a certificate.
@@ -610,7 +608,7 @@
  */
 int mbedtls_x509_crt_verify_info( char *buf, size_t size, const char *prefix,
                           uint32_t flags );
-#endif
+#endif /* !MBEDTLS_X509_REMOVE_INFO */
 
 /**
  * \brief          Verify a chain of certificates.
diff --git a/include/mbedtls/x509_csr.h b/include/mbedtls/x509_csr.h
index 9f3cae2..07a3717 100644
--- a/include/mbedtls/x509_csr.h
+++ b/include/mbedtls/x509_csr.h
@@ -136,7 +136,7 @@
  */
 int mbedtls_x509_csr_info( char *buf, size_t size, const char *prefix,
                    const mbedtls_x509_csr *csr );
-#endif
+#endif /* !MBEDTLS_X509_REMOVE_INFO */
 
 /**
  * \brief          Initialize a CSR