patch L-11, L-08

[dudong2]

Closes: #XXX

Description

L-11

Incorrect import of protobuf

• replace "github.com/gogo/protobuf" -> "github.com/cosmos/gogoproto"

L-08

Using deprecated sdk.Msg interface as input

• unused function StdSignBytes from app/ante/utils_test.go

Closes: L-11, L-08

---

For contributor use:

• Targeted PR against correct branch (see CONTRIBUTING.md)
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• Code follows the module structure standards.
• Wrote unit and integration tests
• Updated relevant documentation (docs/) or specification (x/<module>/spec/)
• Added relevant godoc comments.
• Added a relevant changelog entry to the Unreleased section in CHANGELOG.md
• Re-reviewed Files changed in the Github PR explorer

---

For admin use:

• Added appropriate labels to PR (ex. WIP, R4R, docs, etc)
• Reviewers assigned
• Squashed all commits, uses message "Merge pull request #XYZ: [title]" (coding standards)

[poorphd]

LGTM

[zsystm]

LGTM