Remove VRAM convergence check for windows

The APIs we query are optimistic on free space, and windows pages
VRAM, so we don't have to wait to see reported usage recover on unload

Author: dhiltgen

server/sched.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"log/slog"
 	"reflect"
+	"runtime"
 	"sort"
 	"strings"
 	"sync"
@@ -487,8 +488,8 @@ func (runner *runnerRef) needsReload(ctx context.Context, req *LlmRequest) bool
 func (runner *runnerRef) waitForVRAMRecovery() chan interface{} {
 	finished := make(chan interface{}, 1)
 
-	// CPU or Metal don't need checking, so no waiting required
-	if len(runner.gpus) == 1 && (runner.gpus[0].Library == "cpu" || runner.gpus[0].Library == "metal") {
+	// CPU or Metal don't need checking, so no waiting required, windows can page VRAM, and the APIs we query tend to be optimistic on free space
+	if (len(runner.gpus) == 1 && (runner.gpus[0].Library == "cpu" || runner.gpus[0].Library == "metal")) || runtime.GOOS == "windows" {
 		finished <- struct{}{}
 		return finished
 	}