audio: remove effects and tests

* See [1] and [2] for reference and comments.

[1]: 346a56239e
[2]: 765b1a3a3d

audio/apex/com.android.hardware.audio/Android.bp

@@ -21,28 +21,6 @@ apex {
         "android.hardware.audio.service-aidl.example",
         "android.hardware.audio.effect.service-aidl.example",
     ],
-    native_shared_libs: [
-        "libaecsw",
-        "libagc1sw",
-        "libagc2sw",
-        "libbassboostsw",
-        "libbundleaidl",
-        "libdownmixaidl",
-        "libdynamicsprocessingaidl",
-        "libenvreverbsw",
-        "libequalizersw",
-        "libextensioneffect",
-        "libhapticgeneratoraidl",
-        "libloudnessenhanceraidl",
-        "libnssw",
-        "libpreprocessingaidl",
-        "libpresetreverbsw",
-        "libreverbaidl",
-        "libspatializersw",
-        "libvirtualizersw",
-        "libvisualizeraidl",
-        "libvolumesw",
-    ],
     prebuilts: [
         "android.hardware.audio.service-aidl.example.rc",
         "android.hardware.audio.service-aidl.xml",