Revert "Merged in feature/IO-2433-esignature (pull request #3133)"

This reverts commit af52c35013, reversing
changes made to 36157d87bb.

server/media/imgproxy-media.js

@@ -94,47 +94,6 @@ const generateSignedUploadUrls = async (req, res) => {
   }
 };
 
-/**
- * Upload a file buffer directly to S3.
- * Accepts either `req.file.buffer` (e.g. from multer) or `req.body.buffer` (base64 string).
- */
-const uploadFileBuffer = async ({ key, contentType, buffer }) => {
-  try {
-
-
-    if (!key) {
-      throw new Error("key is required");
-    }
-    if (!buffer) {
-      throw new Error("buffer is required");
-    }
-
-    const isPdf = key.toLowerCase().endsWith(".pdf");
-    const client = new S3Client({ region: InstanceRegion() });
-
-    const putParams = {
-      Bucket: imgproxyDestinationBucket,
-      Key: key,
-      Body: buffer,
-      StorageClass: "INTELLIGENT_TIERING"
-    };
-
-    if (contentType) {
-      putParams.ContentType = contentType;
-    } else if (isPdf) {
-      putParams.ContentType = "application/pdf";
-    }
-
-    await client.send(new PutObjectCommand(putParams));
-
-
-    return ({ success: true, key, bucket: imgproxyDestinationBucket });
-  } catch (error) {
-
-    return { success: false, message: error.message, stack: error.stack };
-  }
-};
-
 /**
  * Get Thumbnail URLS
  * @param req
@@ -541,7 +500,6 @@ const keyStandardize = (doc) => {
 
 module.exports = {
   generateSignedUploadUrls,
-  uploadFileBuffer,
   getThumbnailUrls,
   getOriginalImageByDocumentId,
   downloadFiles,