ci: chore remove llvm features in CI

[Peefy]

1. Does this PR affect any open issues?(Y/N) and add issue references (e.g. "fix #123", "re #123".):

• N
• Y

• ci: chore remove llvm features in CI

[coveralls]

Pull Request Test Coverage Report for Build 10211242104

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 556 unchanged lines in 17 files lost coverage.
• Overall coverage increased (+0.1%) to 70.435%

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Files with Coverage Reduction	New Missed Lines	%
kclvm/error/src/lib.rs	1	61.56%
kclvm/api/src/service/jsonrpc.rs	2	0.0%
kclvm/tools/src/testing/suite.rs	2	91.2%
kclvm/sema/src/core/scope.rs	3	69.44%
kclvm/runtime/src/_kclvm.rs	3	0.0%
kclvm/compiler/src/codegen/traits/value.rs	3	0.0%
kclvm/sema/src/core/symbol.rs	3	51.25%
kclvm/third-party/serde_yaml/src/mapping.rs	6	29.31%
kclvm/version/src/lib.rs	8	27.27%
kclvm/compiler/src/value/schema.rs	10	0.0%

Totals
Change from base Build 10209835905:	0.1%
Covered Lines:	50255
Relevant Lines:	71349

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💛 - Coveralls