Undoing the test cases as everything tested good

- Negative conditions do not cause the action to fail
  - The `nontree_targets` property exists but array is empty
  - The `nontree_targets` property does not exist
  - If the JSON file does not end with a new line
  - If the JSON file does not exist
- Negative conditions that will result in a action failure
  - build step fails reporting the keyboard cannot be found after the non-tree keyboard definition not copying from any of above scenarios
  - If a the array has an entry that results in copy error; file/folder not found

qmk_nontree copy.json

@@ -1,6 +0,0 @@
-{
-	"nontree_targets": [
-		"barbellboards",
-		"planck"
-	]
-}

qmk_nontree.json

@@ -1,3 +1,6 @@
 {
-	"nontree_targets2": []
+	"nontree_targets": [
+		"barbellboards",
+		"planck"
+	]
 }