Remove libosi dependency from l2cap-fuzzer

Avoid merge conflicts, since this dependency isn't there in
main or AOSP.

Bug: 301661850
Test: mma -j32
Flag: EXEMPT, merge conflict resolution
Ignore-AOSP-First: This is not in AOSP
Change-Id: I55004b0a678e33bd87b45176edd9c52b35b97ea3

system/stack/Android.bp

@@ -654,7 +654,6 @@ cc_fuzz {
         "libbt_shim_bridge",
         "libbt_shim_ffi",
         "libgmock",
-        "libosi",
     ],
     target: {
         android: {