fixup: unused imports

Signed-off-by: Todd Baert <[email protected]>

Author: toddbaert

providers/flagd/src/main/java/dev/openfeature/contrib/providers/flagd/resolver/process/storage/connector/sync/SyncStreamQueueSource.java

@@ -16,13 +16,6 @@
 import dev.openfeature.flagd.grpc.sync.Sync.SyncFlagsResponse;
 import dev.openfeature.sdk.Awaitable;
 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
-import io.grpc.CallOptions;
-import io.grpc.Channel;
-import io.grpc.ClientCall;
-import io.grpc.ClientInterceptor;
-import io.grpc.ForwardingClientCall;
-import io.grpc.Metadata;
-import io.grpc.MethodDescriptor;
 import io.grpc.Status;
 import io.grpc.StatusRuntimeException;
 import io.grpc.stub.StreamObserver;