remove per-model types

mostly replaced by decoding tensors except ggml models which only
support llama

llm/falcon.go

-package llm
-
-const (
-	falconModelType7B   = 32
-	falconModelType40B  = 60
-	falconModelType180B = 80
-)
-
-func falconModelType(numLayer uint32) string {
-	switch numLayer {
-	case 32:
-		return "7B"
-	case 60:
-		return "40B"
-	case 80:
-		return "180B"
-	default:
-		return "unknown"
-	}
-}

llm/gguf.go

@@ -120,27 +120,6 @@ func (llm *ggufModel) ModelType() string {
 		return format.HumanNumber(llm.parameters)
 	}
 
-	switch llm.ModelFamily() {
-	case "llama":
-		if blocks, ok := llm.kv["llama.block_count"].(uint32); ok {
-			heads, headsOK := llm.kv["llama.head_count"].(uint32)
-			headKVs, headsKVsOK := llm.kv["llama.head_count_kv"].(uint32)
-			if headsOK && headsKVsOK && heads/headKVs == 8 {
-				return "70B"
-			}
-
-			return llamaModelType(blocks)
-		}
-	case "falcon":
-		if blocks, ok := llm.kv["falcon.block_count"].(uint32); ok {
-			return falconModelType(blocks)
-		}
-	case "starcoder":
-		if blocks, ok := llm.kv["starcoder.block_count"].(uint32); ok {
-			return starCoderModelType(blocks)
-		}
-	}
-
 	return "unknown"
 }
 

llm/starcoder.go

-package llm
-
-const (
-	starCoderModelType1B  = 24
-	starCoderModelType3B  = 36
-	starCoderModelType7B  = 42
-	starCoderModelType15B = 40
-)
-
-func starCoderModelType(numLayer uint32) string {
-	switch numLayer {
-	case 24:
-		return "1B"
-	case 36:
-		return "3B"
-	case 42:
-		return "7B"
-	case 40:
-		return "15B"
-	default:
-		return "unknown"
-	}
-}