982: slimmed schema loading logic

core/src/main/java/dev/fitko/fitconnect/core/schema/SchemaResourceProvider.java

@@ -136,32 +136,28 @@ public class SchemaResourceProvider implements SchemaProvider {
 
     private void addSetSchema(final String schema) {
 
-        Optional<URI> schemaId = readIdFromSchema(schema);
-        schemaId.ifPresentOrElse(
+        readIdFromSchema(schema).ifPresentOrElse(
                 id -> setSchemas.put(id, schema),
                 () -> LOGGER.warn("File '" + schema + "' does not provide a valid set schema and will be ignored."));
     }
 
     private void addMetadataSchema(final String schema) {
 
-        Optional<URI> schemaId = readIdFromSchema(schema);
-        schemaId.ifPresentOrElse(
+        readIdFromSchema(schema).ifPresentOrElse(
                 id -> metadataSchemas.put(id, schema),
                 () -> LOGGER.warn("File '" + schema + "' does not provide a valid metadata schema and will be ignored."));
     }
 
     private void addDestinationSchema(final String schema) {
 
-        Optional<URI> schemaId = readIdFromSchema(schema);
-        schemaId.ifPresentOrElse(
+        readIdFromSchema(schema).ifPresentOrElse(
                 id -> destinationSchemas.put(id, schema),
                 () -> LOGGER.warn("File '" + schema + "' does not provide a valid destination schema and will be ignored."));
     }
 
     private void addSubmissionDataSchema(final String schema) {
 
-        Optional<URI> schemaId = readIdFromSchema(schema);
-        schemaId.ifPresentOrElse(
+        readIdFromSchema(schema).ifPresentOrElse(
                 id -> submissionDataSchemas.put(id, schema),
                 () -> LOGGER.warn("File '" + schema + "' does not provide a valid submission data schema and will be ignored."));
     }