Remove duplicated line of toolchain

Change-Id: I75eefd790dc8bfa31c8c74fe78c62bdf89100e07
diff --git a/nest_wired_outdoor_2nd_gen/493063.xml b/nest_wired_outdoor_2nd_gen/493063.xml
index 37c8c2a..cf5bb7d 100644
--- a/nest_wired_outdoor_2nd_gen/493063.xml
+++ b/nest_wired_outdoor_2nd_gen/493063.xml
@@ -22,7 +22,6 @@
   <project name="eigen" remote="nest-open-source" revision="b525cb8239492ac0d3dd4cedabd71ef98e9573ad"/>
   <project name="libusb" remote="nest-open-source" revision="75f7cd68c64cc37f0bc24a5f1d75dd4d8892da90"/>
   <project name="toolchain" remote="nest-open-source" revision="a7569754549246b66dd07dd0b0ccdc74eff21e49"/>
-  <project name="toolchain" remote="nest-open-source" revision="a7569754549246b66dd07dd0b0ccdc74eff21e49"/>
   <project name="nspr" remote="nest-open-source" revision="285c473d8655d6b08d0065a407949130f07cd471"/>
   <project name="opencflite" remote="nest-open-source" revision="4d9155a24f9c7981e71c2e51c2dc8d85ff6756ad"/>
   <project name="licenses" remote="nest-open-source" revision="5a3631c83d61008f9dcd64ba4243a78eadc2e130">