Remove spaces.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
diff --git a/library/ecp_curves.c b/library/ecp_curves.c
index a0d5fdc..2199be6 100644
--- a/library/ecp_curves.c
+++ b/library/ecp_curves.c
@@ -754,7 +754,7 @@
 {
     ECP_VALIDATE_RET( grp != NULL );
     mbedtls_ecp_group_free( grp );
-    
+
     mbedtls_ecp_group_init( grp );
 
     grp->id = id;