Remove default_ecosystem

[fundthmcalculus]

Closes #836

[codecov-commenter]

Codecov Report

Merging #840 (d9a88c4) into main (da6609d) will decrease coverage by 44.43%.
The diff coverage is 62.06%.

@@              Coverage Diff              @@
##               main     #840       +/-   ##
=============================================
- Coverage     61.55%   17.12%   -44.44%     
- Complexity        0      846      +846     
=============================================
  Files            14      273      +259     
  Lines           489    41626    +41137     
  Branches          0     4347     +4347     
=============================================
+ Hits            301     7127     +6826     
- Misses          188    33818    +33630     
- Partials          0      681      +681     

Impacted Files	Coverage Δ
dart/lib/src/proto/sdk/options/v1/options.pb.dart	52.45% <ø> (ø)
dart/lib/src/trinsic_util.dart	100.00% <ø> (ø)
dotnet/Trinsic/ServiceBase.cs	94.59% <ø> (-0.15%)	⬇️
dotnet/Trinsic/TrinsicService.cs	78.57% <ø> (-1.43%)	⬇️
go/services/service_base.go	61.42% <ø> (ø)
java/src/main/java/trinsic/TrinsicUtilities.java	76.19% <ø> (ø)
.../src/main/java/trinsic/sdk/options/v1/Options.java	15.51% <ø> (ø)
...src/main/java/trinsic/services/AccountServiceKt.kt	0.00% <0.00%> (ø)
...va/src/main/java/trinsic/services/ServiceBase.java	80.76% <ø> (ø)
python/samples/account_demo.py	82.60% <0.00%> (ø)
... and 275 more

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