Notepad how to remove duplicate lines?

Question

Notepad++

Hello. There is a file like:

<offer>
  <uniq>111</uniq>
  <param>001</param>
  <image>image1.jpg</image>
</offer>
<offer>
  <uniq>111</uniq>
  <param>002</param>
  <image>image1.jpg</image>
</offer>
<offer>
  <uniq>222</uniq>
  <param>001</param>
  <image>image2.jpg</image>
</offer>
<offer>
  <uniq>222</uniq>
  <param>002</param>
  <image>image2.jpg</image>
</offer>

How to remove image line duplicates while leaving other duplicates?

Answer 1

Search and replace...

Answer 2

You can use plugins.
answer can be found here