Remove lang: frontmatter key

ca/asciidoc.md

@@ -4,7 +4,6 @@ contributors:
     - ["Ryan Mavilia", "http://unoriginality.rocks/"]
 translators:
     - ["Abel Salgado Romero", "https://twitter.com/abelsromero"]
-lang: ca-es
 filename: asciidoc-ca.adoc
 ---
 

ca/go.md

@@ -1,7 +1,6 @@
 ---
 category: language
 language: Go
-lang: ca-es
 filename: learngo-ca.go
 contributors:
     - ["Sonia Keys", "https://github.com/soniakeys"]

ca/groovy.md

@@ -1,7 +1,6 @@
 ---
 category: language
 language: Groovy
-lang: ca-es
 filename: learngroovy-ca.groovy
 contributors:
     - ["Roberto Pérez Alcolea", "http://github.com/rpalcolea"]

ca/html.md

@@ -5,7 +5,6 @@ contributors:
     - ["Christophe THOMAS", "https://github.com/WinChris"]
 translators:
     - ["Marc Auledas", "https://github.com/Auledas"]
-lang: ca-es
 ---
 
 HTML significa llenguatge de marques d'hipertext (HyperText Markup Language).

ca/kotlin.md

@@ -4,7 +4,6 @@ contributors:
     - ["S Webber", "https://github.com/s-webber"]
 translators:
     - ["Xavier Sala", "https://github.com/utrescu"] 
-lang: ca-es
 filename: LearnKotlin-ca.kt
 ---