Revert "fix(qdrant): support Long type in payload by converting to String"

This reverts commit f8b29f6.

Signed-off-by: Solomon Hsu <[email protected]>

Author: solnone

vector-stores/spring-ai-qdrant-store/src/main/java/org/springframework/ai/vectorstore/qdrant/QdrantValueFactory.java

@@ -75,9 +75,6 @@ private static Value value(Object value) {
 				return ValueFactory.value((String) value);
 			case "Integer":
 				return ValueFactory.value((Integer) value);
-			case "Long":
-				// use String representation
-				return ValueFactory.value(String.valueOf(value));
 			case "Double":
 				return ValueFactory.value((Double) value);
 			case "Float":