Fix when "Unloading DSL model" is logged (#5411)

Fix #5350

Signed-off-by: Laurent Garnier <lg.hc@free.fr>

Author: lolodomo

bundles/org.openhab.core.model.core/src/main/java/org/openhab/core/model/core/internal/ModelRepositoryImpl.java

@@ -127,7 +127,7 @@ public boolean addOrRefreshModel(String name, final InputStream originalInputStr
             }
             if (!valid) {
                 logger.warn("DSL model '{}' has errors, therefore ignoring it: {}", name, String.join("\n", newErrors));
-                removeModel(name);
+                removeResource(name);
                 return false;
             }
             if (!newWarnings.isEmpty()) {
@@ -184,6 +184,10 @@ public boolean addOrRefreshModel(String name, final InputStream originalInputStr
     @Override
     public boolean removeModel(String name) {
         logger.info("Unloading DSL model '{}'", name);
+        return removeResource(name);
+    }
+
+    private boolean removeResource(String name) {
         Resource resource = getResource(name);
         if (resource != null) {
             synchronized (resourceSet) {