clean skills

Author: huhuhang

javascript/30-seconds-of-javascript/lab-append-function-arguments/index.json

@@ -31,7 +31,6 @@
           "javascript/arith_ops",
           "javascript/comp_ops",
           "javascript/data_types",
-          "javascript/spread_rest",
           "javascript/str_manip",
           "javascript/variables"
         ]

javascript/30-seconds-of-javascript/lab-argument-coalescing-factory/index.json

@@ -31,7 +31,6 @@
           "javascript/arith_ops",
           "javascript/comp_ops",
           "javascript/data_types",
-          "javascript/spread_rest",
           "javascript/variables"
         ]
       }

javascript/30-seconds-of-javascript/lab-argument-coalescing/index.json

@@ -31,7 +31,6 @@
           "javascript/arith_ops",
           "javascript/comp_ops",
           "javascript/data_types",
-          "javascript/spread_rest",
           "javascript/variables"
         ]
       }

javascript/30-seconds-of-javascript/lab-array-intersection/index.json

@@ -32,7 +32,6 @@
           "javascript/comp_ops",
           "javascript/data_types",
           "javascript/higher_funcs",
-          "javascript/spread_rest",
           "javascript/variables"
         ]
       }

javascript/30-seconds-of-javascript/lab-array-permutations/index.json

@@ -35,7 +35,6 @@
           "javascript/data_types",
           "javascript/higher_funcs",
           "javascript/obj_manip",
-          "javascript/spread_rest",
           "javascript/variables"
         ]
       }

javascript/30-seconds-of-javascript/lab-array-symmetric-difference/index.json

@@ -32,7 +32,6 @@
           "javascript/comp_ops",
           "javascript/data_types",
           "javascript/higher_funcs",
-          "javascript/spread_rest",
           "javascript/variables"
         ]
       }

javascript/30-seconds-of-javascript/lab-array-to-object-based-on-key/index.json

@@ -33,7 +33,6 @@
           "javascript/comp_ops",
           "javascript/data_types",
           "javascript/higher_funcs",
-          "javascript/spread_rest",
           "javascript/variables"
         ]
       }

javascript/30-seconds-of-javascript/lab-array-union/index.json

@@ -32,7 +32,6 @@
           "javascript/comp_ops",
           "javascript/data_types",
           "javascript/debugging",
-          "javascript/spread_rest",
           "javascript/variables"
         ]
       }

javascript/30-seconds-of-javascript/lab-array-unique-symmetric-difference/index.json

@@ -32,7 +32,6 @@
           "javascript/comp_ops",
           "javascript/data_types",
           "javascript/higher_funcs",
-          "javascript/spread_rest",
           "javascript/variables"
         ]
       }

javascript/30-seconds-of-javascript/lab-arrays-have-same-contents/index.json

@@ -34,7 +34,6 @@
           "javascript/data_types",
           "javascript/higher_funcs",
           "javascript/loops",
-          "javascript/spread_rest",
           "javascript/variables"
         ]
       }