Remove GBXML DocumentBuilder from workflow for pushing Environment objects to XML

[FraserGreenroyd]

Fixes #475

Test files available here.

I recommend pushing an Environments Model to gbXML and viewing either via Aragog or another gbXML viewer of your choice.

[FraserGreenroyd]

@BHoMBot check compliance

[bhombot-ci]

@FraserGreenroyd to confirm, the following actions are now queued:

• check code-compliance
• check documentation-compliance
• check project-compliance
• check branch-compliance
• check dataset-compliance
• check copyright-compliance

[FraserGreenroyd]

@BHoMBot check core
@BHoMBot check null-handling
@BHoMBot check serialisation

[bhombot-ci]

@FraserGreenroyd to confirm, the following actions are now queued:

• check core
• check null-handling
• check serialisation

[FraserGreenroyd]

@BHoMBot check versioning

[bhombot-ci]

@FraserGreenroyd to confirm, the following actions are now queued:

• check versioning

[FraserGreenroyd]

@BHoMBot check installer
@BHoMBot check null-handling

[bhombot-ci]

@FraserGreenroyd to confirm, the following actions are now queued:

• check installer
• check null-handling

[FraserGreenroyd]

@BHoMBot check versioning

[bhombot-ci]

@FraserGreenroyd to confirm, the following actions are now queued:

• check versioning

[jamesramsden-bh]

Have confirmed satisfactory behaviour by running the provided test GH file and viewing in Aragog, works as expected without issue.

[FraserGreenroyd]

@BHoMBot this is a DevOps instruction. I am requesting neutral checks on: versioning, ready-to-merge

[bhombot-ci]

@FraserGreenroyd I have provided neutral checks to the checks requested. These checks will need to be run properly to obtain full results.