Removed 1 unnecessary stubbing in RemoteFileUtilsTest.java

[ARUS2023]

Testing done

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In our analysis of the project, we observed that: 1 stubbing in RemoteFileUtilsTest.setUp is created but never executed by 16 tests RemoteFileUtilsTest.should_ReturnContentType_When_APK, RemoteFileUtilsTest.should_ReturnContentType_When_AAB, RemoteFileUtilsTest.should_ReturnContentType_When_MSI, RemoteFileUtilsTest.should_ReturnContentType_When_PLIST, RemoteFileUtilsTest.should_ReturnContentType_When_AETX, RemoteFileUtilsTest.should_ReturnContentType_When_CER, RemoteFileUtilsTest.should_ReturnContentType_When_XAP, RemoteFileUtilsTest.should_ReturnContentType_When_APPX, RemoteFileUtilsTest.should_ReturnContentType_When_APPXBUNDLE, RemoteFileUtilsTest.should_ReturnContentType_When_APPXUPLOAD, RemoteFileUtilsTest.should_ReturnContentType_When_APPXSYM, RemoteFileUtilsTest.should_ReturnContentType_When_MSIX, RemoteFileUtilsTest.should_ReturnContentType_When_MSIXBUNDLE, RemoteFileUtilsTest.should_ReturnContentType_When_MSIXUPLOAD, RemoteFileUtilsTest.should_ReturnContentType_When_MSIXSYM, RemoteFileUtilsTest.should_ReturnContentType_When_UNKNOWN.

Unnecessary stubbings are stubbed method calls that were never realized during test execution. Mockito recommends to remove unnecessary stubbings (https://www.javadoc.io/doc/org.mockito/mockito-core/latest/org/mockito/exceptions/misusing/UnnecessaryStubbingException.html).

We propose below a solution to remove the unnecessary stubbing.