chore(shorebird_code_push): remove error log when shorebird is unavailable (#101)

* chore(shorebird_code_push): remove error log when shorebird is unavailable

* fix tests

shorebird_code_push/lib/src/shorebird_code_push_io.dart

@@ -25,8 +25,6 @@ class ShorebirdCodePush implements ShorebirdCodePushBase {
       updater.currentPatchNumber();
       _delegate = ShorebirdCodePushFfi(updater: updater);
     } catch (error) {
-      // ignore: avoid_print
-      print('[ShorebirdCodePush]: Error initializing updater: $error');
       _delegate = ShorebirdCodePushNoop();
     }
   }

shorebird_code_push/test/shorebird_code_push_io_test.dart

@@ -35,14 +35,11 @@ void main() {
       expect(shorebirdCodePush, isNotNull);
       expect(
         printLogs,
-        [
-          startsWith(
-            '''[ShorebirdCodePush]: Error initializing updater: Invalid argument(s): Failed to lookup symbol''',
-          ),
-          equals(
+        equals(
+          [
             '''[ShorebirdCodePush]: Shorebird Engine not available, using no-op implementation.\n''',
-          ),
-        ],
+          ],
+        ),
       );
     });
 
@@ -58,12 +55,11 @@ void main() {
       );
       expect(
         printLogs,
-        [
-          equals('[ShorebirdCodePush]: Error initializing updater: $exception'),
-          equals(
+        equals(
+          [
             '''[ShorebirdCodePush]: Shorebird Engine not available, using no-op implementation.\n''',
-          ),
-        ],
+          ],
+        ),
       );
     });