net_test_bta_security: Remove audio dependency

Bug: 325018304
Test: mma -j32
Flag: EXEMPT, build-only change
Change-Id: I7857c3babc7dc4ef8a6f30733c383907694948fa

system/bta/Android.bp

@@ -388,8 +388,6 @@ cc_test {
         "test/bta_hf_client_security_test.cc",
     ],
     shared_libs: [
-        "android.hardware.bluetooth.audio@2.0",
-        "android.hardware.bluetooth.audio@2.1",
         "libcrypto",
         "libcutils",
         "liblog",