Remove unnecessary HERMES_V1_ENABLED=1 inside build.gradle (#56917)

Summary:
This is no longer necessary and just creates a warning:

```
C/C++: CMake Warning:
C/C++:   Manually-specified variables were not used by the project:
C/C++:     HERMES_V1_ENABLED
```

Let's clean this up.

## Changelog:

[INTERNAL] -

Pull Request resolved: #56917

Test Plan: CI

Reviewed By: javache

Differential Revision: D105946805

Pulled By: cortinico

fbshipit-source-id: 3518168b3c060b41d8b0e71d5150b45d621c4505

Author: cortinico

packages/react-native/ReactAndroid/build.gradle.kts

@@ -580,8 +580,6 @@ android {
             "-DCMAKE_POLICY_DEFAULT_CMP0069=NEW",
         )
 
-        arguments("-DHERMES_V1_ENABLED=1")
-
         targets(
             "reactnative",
             "jsi",