uridecodebin3: Remove "source" property
There is not necessarily a single urisourcebin inside uridecodebin3 so having a single source property makes little sense. Additionally, this property was never hooked up at all and always returned NULL.
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There is not necessarily a single urisourcebin inside uridecodebin3 so having a single source property makes little sense. Additionally, this property was never hooked up at all and always returned NULL.