Remove redundant variable and password

Author: mrmarkuz

imageroot/actions/upload-certificate/21validate_certificates

@@ -9,7 +9,6 @@ set -e
 
 CERT_FILE=uploaded_cert
 KEY_FILE=uploaded_key
-NO_PASSPHRASE_KEY=0
 VALID_KEY=0
 TYPE_KEY=""
 
@@ -18,11 +17,7 @@ del_certs() {
 }
 
 # checking if key has a passphrase
-if openssl pkey -in $KEY_FILE -passin pass:1234 >/dev/null 2>&1; then
-    NO_PASSPHRASE_KEY=1
-fi
-
-if [ $NO_PASSPHRASE_KEY -eq 0 ]; then
+if ! openssl pkey -in $KEY_FILE -passin pass: >/dev/null 2>&1; then
     echo "A key with a passphrase is not allowed." 1>&2
     echo "set-status validation-failed" >&${AGENT_COMFD:-2}
     printf '[{"field":"keyFile","parameter":"keyFile","value":"","error":"invalid_key"}]\n'