Merge "adb: avoid crash when authenticating without vendor keys." am: 046cc11982 am: dada5fd17e

Original change: https://android-review.googlesource.com/c/platform/system/core/+/1331888

Change-Id: I917a3a1d8f51fa883565c4ec69fb43fd2699edc6
diff --git a/adb/transport.cpp b/adb/transport.cpp
index b6b6984..c33d5af 100644
--- a/adb/transport.cpp
+++ b/adb/transport.cpp
@@ -1533,8 +1533,7 @@
         keys_.pop_front();
     }
 
-    std::shared_ptr<RSA> result = keys_[0];
-    return result;
+    return Key();
 }
 
 void atransport::ResetKeys() {