egl/android: Remove unused variables
egl/android: Remove unused variables

There are some unused variables left after previous clean-ups triggering
compiler warnings. Let's remove them.

Cc: "12.0" <59f39c0db42d4479a46b02d4d2bc11120e37bb44@lists.freedesktop.org>
Signed-off-by: Tomasz Figa <e928e8536d73fe98ff913c2a4249a3960d9cb959@chromium.org>
Reviewed-by: Emil Velikov <f20878473f414da183da19ee25c8722cc1d711e4@collabora.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler