chore(cli): remove decamelize pkg for compatiblity issues

packages/vant-cli/yarn.lock

@@ -842,14 +842,6 @@
     "@babel/helper-plugin-utils" "^7.0.0"
     "@babel/plugin-transform-typescript" "^7.7.4"
 
-"@babel/runtime-corejs2@^7.2.0":
-  version "7.7.2"
-  resolved "https://registry.yarnpkg.com/@babel/runtime-corejs2/-/runtime-corejs2-7.7.2.tgz#5a8c4e2f8688ce58adc9eb1d8320b6e7341f96ce"
-  integrity sha512-GfVnHchOBvIMsweQ13l4jd9lT4brkevnavnVOej5g2y7PpTRY+R4pcQlCjWMZoUla5rMLFzaS/Ll2s59cB1TqQ==
-  dependencies:
-    core-js "^2.6.5"
-    regenerator-runtime "^0.13.2"
-
 "@babel/runtime@^7.0.0":
   version "7.7.4"
   resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.7.4.tgz#b23a856751e4bf099262f867767889c0e3fe175b"
@@ -3555,11 +3547,6 @@ core-js-compat@^3.4.7:
     browserslist "^4.8.2"
     semver "^6.3.0"
 
-core-js@^2.6.5:
-  version "2.6.10"
-  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.6.10.tgz#8a5b8391f8cc7013da703411ce5b585706300d7f"
-  integrity sha512-I39t74+4t+zau64EN1fE5v2W31Adtc/REhzWN+gWRRXg6WH5qAsZm62DHpQ1+Yhe4047T55jvzz7MUqF/dBBlA==
-
 core-util-is@1.0.2, core-util-is@~1.0.0:
   version "1.0.2"
   resolved "https://registry.npm.taobao.org/core-util-is/download/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
@@ -3839,13 +3826,6 @@ decamelize@^1.1.0, decamelize@^1.1.2, decamelize@^1.2.0:
   resolved "https://registry.npm.taobao.org/decamelize/download/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
   integrity sha1-9lNNFRSCabIDUue+4m9QH5oZEpA=
 
-decamelize@^3.2.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-3.2.0.tgz#84b8e8f4f8c579f938e35e2cc7024907e0090851"
-  integrity sha512-4TgkVUsmmu7oCSyGBm5FvfMoACuoh9EOidm7V5/J2X2djAwwt57qb3F2KMP2ITqODTCSwb+YRV+0Zqrv18k/hw==
-  dependencies:
-    xregexp "^4.2.4"
-
 decode-uri-component@^0.2.0:
   version "0.2.0"
   resolved "https://registry.npm.taobao.org/decode-uri-component/download/decode-uri-component-0.2.0.tgz#eb3913333458775cb84cd1a1fae062106bb87545"
@@ -11904,13 +11884,6 @@ xml-name-validator@^3.0.0:
   resolved "https://registry.npm.taobao.org/xml-name-validator/download/xml-name-validator-3.0.0.tgz#6ae73e06de4d8c6e47f9fb181f78d648ad457c6a"
   integrity sha1-auc+Bt5NjG5H+fsYH3jWSK1FfGo=
 
-xregexp@^4.2.4:
-  version "4.2.4"
-  resolved "https://registry.yarnpkg.com/xregexp/-/xregexp-4.2.4.tgz#02a4aea056d65a42632c02f0233eab8e4d7e57ed"
-  integrity sha512-sO0bYdYeJAJBcJA8g7MJJX7UrOZIfJPd8U2SC7B2Dd/J24U0aQNoGp33shCaBSWeb0rD5rh6VBUIXOkGal1TZA==
-  dependencies:
-    "@babel/runtime-corejs2" "^7.2.0"
-
 xtend@^4.0.0, xtend@^4.0.1, xtend@~4.0.1:
   version "4.0.2"
   resolved "https://registry.npm.taobao.org/xtend/download/xtend-4.0.2.tgz#bb72779f5fa465186b1f438f674fa347fdb5db54"