Remove preview files

packs/fe-hilda/README.md

-# FE-Hilda  
-![Preview of FE-Hilda](preview.png)
\ No newline at end of file

packs/fe-marianne/README.md

-# FE-Marianne  
-![Preview of FE-Marianne](preview.png)
\ No newline at end of file

packs/francais/README.md

-# Français  
-![Preview of Français](preview.png)
\ No newline at end of file

packs/ganbare-doukichan/README.md

-# ganbare-doukichan-pack  
-![Preview of ganbare-doukichan-pack](preview.png)
\ No newline at end of file

packs/japanesekitty/README.md

-# japanesekitty  
-![Preview of japanesekitty](preview.png)
\ No newline at end of file

packs/jouker/README.md

-# Jouker  
-![Preview of Jouker](preview.png)
\ No newline at end of file

packs/jvc/README.md

-# JVC  
-![Preview of JVC](preview.png)
\ No newline at end of file

packs/kumiko/README.md

-# kumiko-pack  
-![Preview of kumiko-pack](preview.png)
\ No newline at end of file

packs/larry/README.md

-# Larry  
-![Preview of Larry](preview.png)
\ No newline at end of file

packs/logh/README.md

-# logh  
-![Preview of logh](preview.png)
\ No newline at end of file

packs/macron-demon/README.md

-# Macron_demon  
-![Preview of Macron_demon](preview.png)
\ No newline at end of file

packs/madoka-magica/README.md

-# Madoka Magica  
-![Preview of Madoka Magica](preview.png)
\ No newline at end of file

packs/madokamisc/README.md

-# MadokaMisc  
-![Preview of MadokaMisc](preview.png)
\ No newline at end of file

packs/magia-record/README.md

-# Magia Record  
-![Preview of Magia Record](preview.png)
\ No newline at end of file

packs/mahoyo/README.md

-# mahoyo  
-![Preview of mahoyo](preview.png)
\ No newline at end of file

packs/mericshololivepack/README.md

-# MericsHololivePack  
-![Preview of MericsHololivePack](preview.png)
\ No newline at end of file

packs/monogatari-series/README.md

-# Monogatari_series  
-![Preview of Monogatari_series](preview.png)
\ No newline at end of file

packs/overwatch/README.md

-# overwatch  
-![Preview of overwatch](preview.png)
\ No newline at end of file

packs/pack-among-us/README.md

-# Pack_Among_us  
-![Preview of Pack_Among_us](preview.png)
\ No newline at end of file

packs/pack-fire-emblem/README.md

-# pack-fire-emblem  
-![Preview of pack-fire-emblem](preview.png)
\ No newline at end of file