Remove leftover travis build script

.wait_for_emulator.sh

@@ -1,24 +0,0 @@
-#!/bin/bash
-
-set +e
-
-bootanim=""
-failcounter=0
-timeout_in_sec=600 # 10 minutes
-
-until [[ "$bootanim" =~ "stopped" ]]; do
-  bootanim=`adb -e shell getprop init.svc.bootanim 2>&1 &`
-  if [[ "$bootanim" =~ "device not found" || "$bootanim" =~ "device offline"
-    || "$bootanim" =~ "running" || "$bootanim" =~  "error: no emulators found" ]]; then
-    let "failcounter += 1"
-    echo "Waiting for emulator to start"
-    if [[ $failcounter -gt timeout_in_sec ]]; then
-      echo "Timeout ($timeout_in_sec seconds) reached; failed to start emulator"
-      exit 1
-    fi
-  fi
-  sleep 1
-done
-
-echo "Emulator is ready"
-