fix: Window and stride calculation error for whisper

Author: CodeWithKyrian

src/Tensor/Tensor.php

@@ -1096,56 +1096,6 @@ public function slice(...$slices): Tensor
         }
 
         return new Tensor($buffer, $this->dtype(), $newShape, $this->offset());
-
-        $newTensorShape = [];
-        $newOffsets = [];
-
-        for ($sliceIndex = 0; $sliceIndex < $this->ndim(); ++$sliceIndex) {
-            $slice = $slices[$sliceIndex] ?? null;
-
-            if ($slice === null) {
-                $newOffsets[] = [0, $this->shape()[$sliceIndex]];
-                $newTensorShape[] = $this->shape()[$sliceIndex];
-
-            } elseif (is_int($slice)) {
-                $slice = $this->safeIndex($slice, $this->shape()[$sliceIndex], $sliceIndex);
-                $newOffsets[] = [$slice, $slice + 1];
-
-            } elseif (is_array($slice) && count($slice) === 2) {
-                if ($slice[0] > $slice[1]) {
-                    throw new Exception("Invalid slice: " . json_encode($slice));
-                }
-                $offsets = [
-                    max($slice[0], 0),
-                    min($slice[1], $this->shape()[$sliceIndex])
-                ];
-                $newOffsets[] = $offsets;
-                $newTensorShape[] = $offsets[1] - $offsets[0];
-
-            } else {
-                throw new Exception("Invalid slice: " . json_encode($slice));
-            }
-        }
-
-        $newShape = array_map(fn($offsets) => $offsets[1] - $offsets[0], $newOffsets);
-
-        $newBufferSize = array_reduce($newShape, fn($a, $b) => $a * $b, 1);
-
-        $buffer = self::newBuffer($newBufferSize, $this->dtype());
-        $stride = $this->stride();
-
-        for ($i = 0; $i < $newBufferSize; ++$i) {
-            $originalIndex = 0;
-            for ($j = count($newShape) - 1, $num = $i; $j >= 0; --$j) {
-                $size = $newShape[$j];
-                $originalIndex += (($num % $size) + $newOffsets[$j][0]) * $stride[$j];
-                $num = floor($num / $size);
-            }
-            $buffer[$i] = $this->buffer[$originalIndex];
-        }
-
-        return new Tensor($buffer, $this->dtype(), $newTensorShape, $this->offset());
-
     }
 
     /**