removing directives from some classic snippets

snippets/ruby-mode/control structure/forin

@@ -1,6 +1,5 @@
 #name : for ... in ...; ... end
-#group : control structure
 # --
 for ${1:element} in ${2:collection}
   $0
-end
+end

snippets/ruby-mode/control structure/if

@@ -1,6 +1,5 @@
 #name : if ... end
-#group : control structure
 # --
 if ${1:condition}
   $0
-end
+end

snippets/ruby-mode/control structure/ife

@@ -1,8 +1,7 @@
 #name : if ... else ... end
-#group : control structure
 # --
 if ${1:condition}
   $2
 else
   $3
-end
+end

snippets/ruby-mode/control structure/tim

@@ -1,4 +1,3 @@
 #name : times { |n| ... }
-#group : control structure
 # --
-times { |${n}| $0 }
+times { |${n}| $0 }

snippets/ruby-mode/control structure/until

@@ -3,4 +3,4 @@
 # --
 until ${condition}
   $0
-end
+end

snippets/ruby-mode/control structure/upt

@@ -1,6 +1,5 @@
 #name : upto(...) { |n| ... }
-#group : control structure
 # --
 upto(${n}) { |${i}|
   $0
-}
+}

snippets/ruby-mode/control structure/when

@@ -1,6 +1,5 @@
 #name : when ... end
-#group : control structure
 # --
 when ${condition}
   $0
-end
+end

snippets/ruby-mode/control structure/while

@@ -1,6 +1,5 @@
 #name : while ... end
-#group : control structure
 # --
 while ${condition}
   $0
-end
+end