meson: remove libplacebo wrap

This causes more pain than it is worth

README.md

@@ -92,15 +92,6 @@ Example:
     meson compile -C build
     meson install -C build
 
-A libplacebo meson wrap is also present for building mpv without having
-libplacebo available during build time. When the meson wrap is executed,
-libplacebo will be recursively cloned with all its dependencies and statically
-linked with mpv.
-
-Users can also force mpv to fallback to the wrap file:
-
-    meson setup build --force-fallback-for=libplacebo
-
 Essential dependencies (incomplete list):
 
 - gcc or clang

meson.build

@@ -23,8 +23,7 @@ libavutil = dependency('libavutil', version: '>= 56.70.100')
 libswresample = dependency('libswresample', version: '>= 3.9.100')
 libswscale = dependency('libswscale', version: '>= 5.9.100')
 
-libplacebo = dependency('libplacebo', version: '>=6.338.0', fallback: ['libplacebo', 'libplacebo'],
-    default_options: ['default_library=static', 'demos=false'])
+libplacebo = dependency('libplacebo', version: '>=6.338.0')
 
 libass = dependency('libass', version: '>= 0.12.2')
 

subprojects/libplacebo.wrap

@@ -1,6 +0,0 @@
-[wrap-git]
-
-url = https://code.videolan.org/videolan/libplacebo.git
-revision = v6.338.1
-depth = 1
-clone-recursive = true