edgetpu: Stop building this from source

The edgetpu libraries are built on a different release cadance
and separately from Mendel, so we should stop building these
ourselves.

Change-Id: If4985756491d5cfe964508c2890b839011003575
diff --git a/packages.mk b/packages.mk
index 12d2e27..cdae928 100644
--- a/packages.mk
+++ b/packages.mk
@@ -138,9 +138,6 @@
 $(eval $(call make-pbuilder-package-target,android-core,android-core))
 $(eval $(call make-pbuilder-package-target,mendel-minimal,packages/mendel-minimal))
 $(eval $(call make-pbuilder-package-target,base-files,packages/base-files))
-$(eval $(call make-pbuilder-package-target,edgetpu,packages/edgetpu,,,binary,,native))
-$(eval $(call make-pbuilder-package-target,edgetpuvision,packages/edgetpuvision,,,,,native))
-$(eval $(call make-pbuilder-package-target,edgetpudemo,packages/edgetpudemo))
 $(eval $(call make-pbuilder-package-target,mdt-services,packages/mdt-services))
 $(eval $(call make-pbuilder-package-target,mendel-distro-info-data,packages/mendel-distro-info-data))
 $(eval $(call make-pbuilder-package-target,mendel-keyring,packages/mendel-keyring))