Revert "Convert vendor HAL service to use new AIDL interface."

This reverts commit e58e263bce07e33bcf928388d21c9f544eb537e7.

Reason for revert: Blocking Wembley team

Change-Id: I3cf471e88b880a95a0a2c39f47fb0804deee65cf
diff --git a/wifi/1.6/default/android.hardware.wifi@1.0-service.xml b/wifi/1.6/default/android.hardware.wifi@1.0-service.xml
new file mode 100644
index 0000000..771fbaa
--- /dev/null
+++ b/wifi/1.6/default/android.hardware.wifi@1.0-service.xml
@@ -0,0 +1,11 @@
+<manifest version="1.0" type="device">
+    <hal format="hidl">
+        <name>android.hardware.wifi</name>
+        <transport>hwbinder</transport>
+        <version>1.6</version>
+        <interface>
+            <name>IWifi</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+</manifest>