Revert geospatial component for now

[scpeters]

🦟 Bug fix

Reverts #267 and #289 for now to unbreak ign-rendering (see gazebosim/gz-rendering#539 (comment) )

Summary

I suggested to @jennuine that we were ready to merge #267 but I didn't think about how it would break ign-rendering, so I suggest that we revert the changes for now.

Checklist

• Signed all commits for DCO
• Added tests
• Updated documentation (as needed)
• Updated migration guide (as needed)
• codecheck passed (See contributing)
• All tests passed (See test coverage)
• While waiting for a review on your PR, please help review another open pull request to support the maintainers

Note to maintainers: Remember to use Squash-Merge and edit the commit message to match the pull request summary while retaining Signed-off-by messages.

[codecov]

Codecov Report

Merging #291 (4548421) into main (e0a5490) will decrease coverage by 0.27%.
The diff coverage is n/a.

❗ Current head 4548421 differs from pull request most recent head da536ed. Consider uploading reports for the commit da536ed to get more accurate results

@@            Coverage Diff             @@
##             main     #291      +/-   ##
==========================================
- Coverage   76.69%   76.42%   -0.28%     
==========================================
  Files          76       75       -1     
  Lines       10647    10461     -186     
==========================================
- Hits         8166     7995     -171     
+ Misses       2481     2466      -15     

Impacted Files	Coverage Δ
graphics/include/ignition/common/HeightmapData.hh	100.00% <ø> (ø)
graphics/include/ignition/common/ImageHeightmap.hh	88.88% <ø> (ø)
graphics/src/ImageHeightmap.cc	55.55% <ø> (ø)
src/Util.cc	84.00% <0.00%> (-2.50%)	⬇️
graphics/src/Image.cc	69.14% <0.00%> (-1.57%)	⬇️
src/SystemPaths.cc	86.08% <0.00%> (-0.44%)	⬇️
graphics/src/Dem.cc

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