Remove sudo while running the anthos-installer

Running sudo and as root is different in ubuntu which is why
we are not able to download the docker images

Change-Id: Ib2476e55e237594916a1b31b94f48becb9717e56
Reviewed-on: https://cos-review.googlesource.com/c/cos/tools/+/23531
Reviewed-by: Roy Yang <royyang@google.com>
Reviewed-by: Robert Kolchmeyer <rkolchmeyer@google.com>
Tested-by: Varsha Teratipally <teratipally@google.com>
Cloud-Build: GCB Service account <228075978874@cloudbuild.gserviceaccount.com>
diff --git a/src/pkg/provisioner/anthos_installer_install_script.go b/src/pkg/provisioner/anthos_installer_install_script.go
index 00b4403..aee9c61 100644
--- a/src/pkg/provisioner/anthos_installer_install_script.go
+++ b/src/pkg/provisioner/anthos_installer_install_script.go
@@ -30,7 +30,7 @@
 }
 
 install_packages() {
-	sudo ${BIN_DIR}/anthos_installer install -pkgspec-url=${PACKAGE_SPEC_DIR} -build-contextdir=${BUILD_CONTEXT_DIR}
+	${BIN_DIR}/anthos_installer install -pkgspec-url=${PACKAGE_SPEC_DIR} -build-contextdir=${BUILD_CONTEXT_DIR}
 	echo "Successfully installed the packages"
 }