[kbn/optimizer] remove unused modules (elastic#74195)

Co-authored-by: spalger <spalger@users.noreply.github.com>

packages/kbn-optimizer/package.json

@@ -15,12 +15,9 @@
     "@kbn/dev-utils": "1.0.0",
     "@kbn/ui-shared-deps": "1.0.0",
     "@types/compression-webpack-plugin": "^2.0.2",
-    "@types/estree": "^0.0.44",
     "@types/loader-utils": "^1.1.3",
     "@types/watchpack": "^1.1.5",
     "@types/webpack": "^4.41.3",
-    "acorn": "^7.1.1",
-    "acorn-walk": "^7.1.1",
     "autoprefixer": "^9.7.4",
     "babel-loader": "^8.0.6",
     "clean-webpack-plugin": "^3.0.0",

yarn.lock

@@ -4609,11 +4609,6 @@
   resolved "https://registry.yarnpkg.com/@types/estree/-/estree-0.0.39.tgz#e177e699ee1b8c22d23174caaa7422644389509f"
   integrity sha512-EYNwp3bU+98cpU4lAWYYL7Zz+2gryWH1qbdDTidVd6hkiR6weksdbMadyXKXNPEkQFhXM+hVO9ZygomHXp+AIw==
 
-"@types/estree@^0.0.44":
-  version "0.0.44"
-  resolved "https://registry.yarnpkg.com/@types/estree/-/estree-0.0.44.tgz#980cc5a29a3ef3bea6ff1f7d021047d7ea575e21"
-  integrity sha512-iaIVzr+w2ZJ5HkidlZ3EJM8VTZb2MJLCjw3V+505yVts0gRC4UMvjw0d1HPtGqI/HQC/KdsYtayfzl+AXY2R8g==
-
 "@types/events@*":
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/@types/events/-/events-1.2.0.tgz#81a6731ce4df43619e5c8c945383b3e62a89ea86"
@@ -6270,7 +6265,7 @@ acorn-walk@^6.0.1:
   resolved "https://registry.yarnpkg.com/acorn-walk/-/acorn-walk-6.1.1.tgz#d363b66f5fac5f018ff9c3a1e7b6f8e310cc3913"
   integrity sha512-OtUw6JUTgxA2QoqqmrmQ7F2NYqiBPi/L2jqHyFtllhOUvXYQXf0Z1CYUinIfyT4bTCGmrA7gX9FvHA81uzCoVw==
 
-acorn-walk@^7.0.0, acorn-walk@^7.1.1:
+acorn-walk@^7.0.0:
   version "7.1.1"
   resolved "https://registry.yarnpkg.com/acorn-walk/-/acorn-walk-7.1.1.tgz#345f0dffad5c735e7373d2fec9a1023e6a44b83e"
   integrity sha512-wdlPY2tm/9XBr7QkKlq0WQVgiuGTX6YWPyRyBviSoScBuLfTVQhvwg6wJ369GJ/1nPfTLMfnrFIfjqVg6d+jQQ==
@@ -6300,7 +6295,7 @@ acorn@^7.0.0:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-7.2.0.tgz#17ea7e40d7c8640ff54a694c889c26f31704effe"
   integrity sha512-apwXVmYVpQ34m/i71vrApRrRKCWQnZZF1+npOD0WV5xZFfwWOmKGQ2RWlfdy9vWITsenisM8M0Qeq8agcFHNiQ==
 
-acorn@^7.1.0, acorn@^7.1.1:
+acorn@^7.1.0:
   version "7.1.1"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-7.1.1.tgz#e35668de0b402f359de515c5482a1ab9f89a69bf"
   integrity sha512-add7dgA5ppRPxCFJoAGfMDi7PIBXq1RtGo7BhbLaxwrXPOmw8gq48Y9ozT01hUKy9byMjlR20EJhu5zlkErEkg==