fix: remove newlines left over after deleting composes declarations

[tivac]

Description

.foo {
-    
    color: fuschia;
}

Motivation and Context

I always hated that extra newline but never took the time to get rid of it.

How Has This Been Tested?

Updated a whoooooooole bunch of snapshots.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[codecov]

Codecov Report

Merging #561 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #561      +/-   ##
==========================================
+ Coverage   99.04%   99.04%   +<.01%     
==========================================
  Files          46       46              
  Lines        1045     1047       +2     
  Branches      163      163              
==========================================
+ Hits         1035     1037       +2     
  Misses         10       10

Impacted Files	Coverage Δ
packages/processor/plugins/composition.js	100% <100%> (ø)	⬆️

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