Remove Map null annotation workarounds (#8916)

These workarounds to prevent false positives can be removed now the EEAs allow for proper null analysis.

Signed-off-by: Wouter Born <github@maindrain.net>

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/OwHandlerFactory.java

@@ -51,7 +51,7 @@ import org.slf4j.LoggerFactory;
 @Component(service = ThingHandlerFactory.class, configurationPid = "binding.onewire")
 public class OwHandlerFactory extends BaseThingHandlerFactory {
     Logger logger = LoggerFactory.getLogger(OwHandlerFactory.class);
-    private final Map<ThingUID, @Nullable ServiceRegistration<?>> discoveryServiceRegs = new HashMap<>();
+    private final Map<ThingUID, ServiceRegistration<?>> discoveryServiceRegs = new HashMap<>();
 
     @NonNullByDefault({})
     private OwDynamicStateDescriptionProvider dynamicStateDescriptionProvider;