Switch to find-unused-sass-variables for finding unused Sass variables.

package-lock.json

@@ -2044,6 +2044,12 @@
         "restore-cursor": "^2.0.0"
       }
     },
+    "cli-spinners": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/cli-spinners/-/cli-spinners-1.3.1.tgz",
+      "integrity": "sha512-1QL4544moEsDVH9T/l6Cemov/37iv1RtoKf7NJ04A60+4MREXNfx/QvavbH6QoGdsD4N4Mwy49cmaINR/o2mdg==",
+      "dev": true
+    },
     "cli-table": {
       "version": "0.3.1",
       "resolved": "https://registry.npmjs.org/cli-table/-/cli-table-0.3.1.tgz",
@@ -2087,6 +2093,12 @@
         }
       }
     },
+    "clone": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/clone/-/clone-1.0.4.tgz",
+      "integrity": "sha1-2jCcwmPfFZlMaIypAheco8fNfH4=",
+      "dev": true
+    },
     "clone-regexp": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/clone-regexp/-/clone-regexp-1.0.1.tgz",
@@ -2481,6 +2493,15 @@
         "os-name": "~1.0.3"
       }
     },
+    "defaults": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/defaults/-/defaults-1.0.3.tgz",
+      "integrity": "sha1-xlYFHpgX2f8I7YgUd/P+QBnz730=",
+      "dev": true,
+      "requires": {
+        "clone": "^1.0.2"
+      }
+    },
     "define-properties": {
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/define-properties/-/define-properties-1.1.3.tgz",
@@ -3584,6 +3605,19 @@
         }
       }
     },
+    "find-unused-sass-variables": {
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/find-unused-sass-variables/-/find-unused-sass-variables-0.2.1.tgz",
+      "integrity": "sha512-AluOKUZHVERMDSjv6SUJ+k/ad6wgpqFsU6vZOTeGk+wZiE7K77I679qyVJP8pw9gr8zHiSdFRiqnRVpXNMyW1Q==",
+      "dev": true,
+      "requires": {
+        "chalk": "^2.4.1",
+        "glob": "^7.1.3",
+        "ora": "^3.0.0",
+        "postcss": "^7.0.2",
+        "postcss-scss": "^2.0.0"
+      }
+    },
     "find-up": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/find-up/-/find-up-3.0.0.tgz",
@@ -7397,6 +7431,37 @@
         "wordwrap": "~1.0.0"
       }
     },
+    "ora": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/ora/-/ora-3.0.0.tgz",
+      "integrity": "sha512-LBS97LFe2RV6GJmXBi6OKcETKyklHNMV0xw7BtsVn2MlsgsydyZetSCbCANr+PFLmDyv4KV88nn0eCKza665Mg==",
+      "dev": true,
+      "requires": {
+        "chalk": "^2.3.1",
+        "cli-cursor": "^2.1.0",
+        "cli-spinners": "^1.1.0",
+        "log-symbols": "^2.2.0",
+        "strip-ansi": "^4.0.0",
+        "wcwidth": "^1.0.1"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-3.0.0.tgz",
+          "integrity": "sha1-7QMXwyIGT3lGbAKWa922Bas32Zg=",
+          "dev": true
+        },
+        "strip-ansi": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
+          "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^3.0.0"
+          }
+        }
+      }
+    },
     "os-homedir": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/os-homedir/-/os-homedir-1.0.2.tgz",
@@ -11481,6 +11546,15 @@
         }
       }
     },
+    "wcwidth": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/wcwidth/-/wcwidth-1.0.1.tgz",
+      "integrity": "sha1-8LDc+RW8X/FSivrbLA4XtTLaL+g=",
+      "dev": true,
+      "requires": {
+        "defaults": "^1.0.3"
+      }
+    },
     "which": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",