Don't go mod vendor gomobile builds

.gitlab-ci.yml

@@ -85,7 +85,6 @@ bindings-ios:
   script:
     - export PATH=$PATH:$HOME/go/bin
     - go install golang.org/x/mobile/cmd/gomobile@latest
-    - go mod vendor
     - go get golang.org/x/mobile/cmd/gobind
     - gomobile init
     - gomobile bind -target ios gitlab.com/elixxir/client/bindings
@@ -105,7 +104,6 @@ bindings-android:
   script:
     - export PATH=$PATH:/usr/local/go/bin:$HOME/go/bin:/android-sdk/platform-tools/
     - export ANDROID_HOME=/android-sdk
-    - go mod vendor
     # Build the bindings
     - go install golang.org/x/mobile/cmd/gomobile@latest
     - go get golang.org/x/mobile/cmd/gobind