codecleanups 1

[rjkroege]

• Removed some dead code
• Removed unnecessary Commit concept

[codecov[bot]]

Codecov Report

Merging #457 (b320ba9) into master (9d06c33) will increase coverage by 0.05%. The diff coverage is 50.00%.

@@            Coverage Diff             @@
##           master     #457      +/-   ##
==========================================
+ Coverage   57.96%   58.02%   +0.05%     
==========================================
  Files          54       54              
  Lines       10697    10683      -14     
==========================================
- Hits         6201     6199       -2     
+ Misses       4058     4049       -9     
+ Partials      438      435       -3     

Impacted Files	Coverage Δ
file/buffer.go	88.86% <ø> (-0.06%)	:arrow_down:
text.go	48.44% <0.00%> (+0.46%)	:arrow_up:
file/observable_editable_buffer.go	72.81% <100.00%> (+0.70%)	:arrow_up:

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