[gnome-builder] rust-template: Don't set CARGO_HOME in manifest

[Christian Hergert <chergert src gnome org>]

commit 30b7e44a7d67f08c2e75252e9db53a174632853b
Author: Felix Häcker <haeckerfelix gnome org>
Date:   Wed Mar 17 18:54:09 2021 +0000

    rust-template: Don't set CARGO_HOME in manifest

 src/plugins/meson-templates/resources/flatpak.json | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/src/plugins/meson-templates/resources/flatpak.json 
b/src/plugins/meson-templates/resources/flatpak.json
index 6e81ed8d3..da7f3a265 100644
--- a/src/plugins/meson-templates/resources/flatpak.json
+++ b/src/plugins/meson-templates/resources/flatpak.json
@@ -22,7 +22,6 @@
             "--share=network"
         ],
         "env" : {
-            "CARGO_HOME" : "/run/build/{{name}}/cargo",
             "RUST_BACKTRACE" : "1",
             "RUST_LOG" : "{{name}}=debug"
         }