models : remove grok-1 and mixtral

grok-1/grok-1-q4_0-00001-of-00009.gguf

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-version https://git-lfs.github.com/spec/v1
-oid sha256:3196d3b209f31ab00ea57e05541e7a7ee4f08e56d79fd6eb76b0cca729b79d68
-size 22628712320

grok-1/grok-1-q4_0-00002-of-00009.gguf

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-version https://git-lfs.github.com/spec/v1
-oid sha256:162c99bbf444581b5f7f312beb8a912a2ddf0e2d6786bac1fc14219e2f2f8c4c
-size 21285584576

grok-1/grok-1-q4_0-00003-of-00009.gguf

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-version https://git-lfs.github.com/spec/v1
-oid sha256:cd9a3b83f7e6876a3a4a14869b560af851ae212d53cf3349bbd576b66b4547fe
-size 21285584640

grok-1/grok-1-q4_0-00004-of-00009.gguf

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-version https://git-lfs.github.com/spec/v1
-oid sha256:977e811b857ae535997011f4cf68ad480488fdf030aacb6f5041fce2ef05d1e5
-size 21909102336

grok-1/grok-1-q4_0-00005-of-00009.gguf

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-version https://git-lfs.github.com/spec/v1
-oid sha256:0ea36cecc2ad6502b680007a447b115684c2e444f9cd6709e296e9ff6cffe985
-size 21625249568

grok-1/grok-1-q4_0-00006-of-00009.gguf

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-version https://git-lfs.github.com/spec/v1
-oid sha256:3de02968cf2e9984e6413c07358d046981d71fd6a3204e91b4a4f36df88b0b7e
-size 21285584640

grok-1/grok-1-q4_0-00007-of-00009.gguf

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-version https://git-lfs.github.com/spec/v1
-oid sha256:3a89f1dd2a9c1f4ba674472d6626c0e3a74bd9c997450f1614425d612acf7dd2
-size 21285584640

grok-1/grok-1-q4_0-00008-of-00009.gguf

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-version https://git-lfs.github.com/spec/v1
-oid sha256:998047ab2d91c072e48f10743eaea332dabcb2a3dc7b2b27d6fe8c35671442f7
-size 21795880704

grok-1/grok-1-q4_0-00009-of-00009.gguf

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-version https://git-lfs.github.com/spec/v1
-oid sha256:b9ffd3e0c4488ff070ead4ba00f1b7183db75a92c113cb6ac6d9d23861855c8d
-size 5547913408

mixtral/ggml-model-iq3_s.gguf

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-version https://git-lfs.github.com/spec/v1
-oid sha256:0ff2420eb5622e10351a9946a917e25d7c48dc5a0879a0f8dcc94aaf214c50e2
-size 20430464896