Fix compiler warning

p15card-helper.c:23:5: warning: 'ENABLE_OPENSSL' is not defined, evaluates to 0
      [-Wundef]
    ^
Fix compiler warning

pkcs15-oberthur.c:116:1: warning: no previous prototype for function
      'cosm_delete_file' [-Wmissing-prototypes]
cosm_delete_file(struct sc_pkcs15_card *p15card, struct sc_profile *profile,
^