FIX: ODEX-320. optimize the error reminder

[RevelationOfTuring]

• 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.

• Wrote tests

• Updated relevant documentation (docs/)

• Added a relevant changelog entry to the Unreleased section in CHANGELOG.md

• Reviewed Files changed in the github PR explorer

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For Admin Use:

• Added appropriate labels to PR (ex. wip, ready-for-review, docs)
• Reviewers Assigned
• Squashed all commits, uses message "Merge PR #XYZ: [title]" (coding standards)

[codecov-io]

Codecov Report

Merging #12 into master will decrease coverage by 0.03%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master      #12      +/-   ##
==========================================
- Coverage   65.75%   65.71%   -0.04%     
==========================================
  Files         149      149              
  Lines        8758     8763       +5     
==========================================
  Hits         5759     5759              
- Misses       2796     2801       +5     
  Partials      203      203              

Impacted Files	Coverage Δ
x/staking/keeper/delegation.go	0.00% <0.00%> (ø)
x/staking/types/errors.go	30.17% <0.00%> (-0.81%)	⬇️

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