Revert "build: disable Vulkan support by default (#17789)" (#17987)

This reverts commit ccad8ec12551efcbf87fbe8542eb063e3e9ec45e.

build/args/all.gn

@@ -8,7 +8,6 @@ v8_embedder_string = "-electron.0"
 
 enable_cdm_host_verification = false
 enable_extensions = false
-enable_vulkan = false
 proprietary_codecs = true
 ffmpeg_branding = "Chrome"