eliminate-julia

[aabills]

Description

Removes Julia code (moved to a different repo)

Fixes # (issue)
Makes pybamm easier to install on apple silicon.

Type of change

Please add a line in the relevant section of CHANGELOG.md to document the change (include PR #) - note reverse order of PR #s. If necessary, also add to the list of breaking changes.

• New feature (non-breaking change which adds functionality)
• Optimization (back-end change that speeds up the code)
• Bug fix (non-breaking change which fixes an issue)

Key checklist:

• No style issues: $ flake8
• All tests pass: $ python run-tests.py --unit
• The documentation builds: $ cd docs and then $ make clean; make html

You can run all three at once, using $ python run-tests.py --quick.

Further checks:

• Code is commented, particularly in hard-to-understand areas
• Tests added that prove fix is effective or that feature works

[codecov]

Codecov Report

Base: 99.72% // Head: 99.72% // Decreases project coverage by -0.00% ⚠️

Coverage data is based on head (ebb2f6b) compared to base (8bdc3e0).
Patch has no changes to coverable lines.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2453      +/-   ##
===========================================
- Coverage    99.72%   99.72%   -0.01%     
===========================================
  Files          258      257       -1     
  Lines        19264    18986     -278     
===========================================
- Hits         19211    18933     -278     
  Misses          53       53              

Impacted Files	Coverage Δ
pybamm/expression_tree/functions.py	100.00% <ø> (ø)
pybamm/models/base_model.py	98.48% <ø> (-0.05%)	⬇️
pybamm/util.py	100.00% <ø> (ø)

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[valentinsulzer]

Changes look good, just need to update changelog saying all julia stuff is removed and pointing to where it is now