[ADF-3593] remove rxjs-compat layer (#3886)

* remove rxjs-compat layer

* add rxjs linter

* observable new instead of create

* lint fixes

* disable rxjs-no-subject-value for certain scenarios

* fix auth rxjs

package.json

@@ -94,7 +94,6 @@
     "raphael": "2.2.7",
     "reflect-metadata": "0.1.10",
     "rxjs": "^6.2.2",
-    "rxjs-compat": "^6.1.0",
     "systemjs": "0.19.27",
     "web-animations-js": "2.3.1",
     "zone.js": "~0.8.26"
@@ -159,6 +158,7 @@
     "remark-frontmatter": "^1.2.0",
     "rimraf": "^2.6.2",
     "run-sequence": "1.2.2",
+    "rxjs-tslint-rules": "^4.10.0",
     "sass-loader": "6.0.5",
     "scss-bundle": "2.3.2",
     "systemjs-builder": "0.15.34",