fix: 修复 FormImageUpload on remove 不生效的问题

[DiamondYuan]

No description provided.

[github-actions]

🎊 PR Preview 1298f5f has been successfully built and deployed to https://ant-design-ant-design-mini-preview-pr-842.surge.sh

🕐 Build time: 226.447s

_{🤖 By surge-preview}

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: -2.14% ⚠️

Comparison is base (d6997bf) 86.11% compared to head (1298f5f) 83.98%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #842      +/-   ##
==========================================
- Coverage   86.11%   83.98%   -2.14%     
==========================================
  Files          48       51       +3     
  Lines        1167     1211      +44     
  Branches      360      369       +9     
==========================================
+ Hits         1005     1017      +12     
- Misses        143      170      +27     
- Partials       19       24       +5     

Files Changed	Coverage Δ
src/Form/FormImageUpload/index.ts	19.04% <100.00%> (ø)

... and 2 files with indirect coverage changes

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