recipes: Remove redaundant devel libs lists

These are added implicitly when you add a library to files_libs

Fixes spurious warnings while building the recipes:

WARNING: No import libraries found for '/libgstvalidate-1.0.a'
WARNING: No import libraries found for '/libgstvalidate-1.0.la'
WARNING: No import libraries found for '/libges-1.0.a'
WARNING: No import libraries found for '/libges-1.0.la'
7 jobs for fix-implib-warnings in 61 minutes and 47 seconds (queued for 1 second)
Status Job ID Name Coverage
  Preparation
passed #82146
manifest

00:00:38

 
  Build
passed #82147
cerbero deps fedora x86_64

00:49:58

passed #82148
cerbero deps windows x86

00:48:23

passed #82149
cerbero deps windows x86_64

00:48:42

 
  Full Builds
passed #82151
build cerbero cross win32

00:11:10

passed #82152
build cerbero cross win64

00:06:27

passed #82150
build cerbero fedora x86_64

00:06:49