Generate all preview sizes for Imaginary

A follow up on #40670

Based on discussions here: #38911 (comment)

This fixes the case were not all previews are generated, for example in the activity view: #38911 (comment)



Signed-off-by: Daniel Hansson <mailto@danielhansson.nu>

Author: enoch85

lib/private/Preview/Generator.php

@@ -139,23 +139,6 @@ public function generatePreviews(File $file, array $specifications, $mimeType =
 			$previewVersion = $file->getPreviewVersion() . '-';
 		}
 
-		// If imaginary is enabled, and we request a small thumbnail,
-		// let's not generate the max preview for performance reasons
-		if (count($specifications) === 1
-			&& ($specifications[0]['width'] <= 256 || $specifications[0]['height'] <= 256)
-			&& preg_match(Imaginary::supportedMimeTypes(), $mimeType)
-			&& $this->config->getSystemValueString('preview_imaginary_url', 'invalid') !== 'invalid') {
-			$crop = $specifications[0]['crop'] ?? false;
-			$preview = $this->getSmallImagePreview($previewFolder, $previewFiles, $file, $mimeType, $previewVersion, $crop);
-
-			if ($preview->getSize() === 0) {
-				$preview->delete();
-				throw new NotFoundException('Cached preview size 0, invalid!');
-			}
-
-			return $preview;
-		}
-
 		// Get the max preview and infer the max preview sizes from that
 		$maxPreview = $this->getMaxPreview($previewFolder, $previewFiles, $file, $mimeType, $previewVersion);
 		$maxPreviewImage = null; // only load the image when we need it