Minor fixes to CI (facebook#4193)

Author: ro-savage

packages/react-error-overlay/src/effects/proxyConsole.js

@@ -28,7 +28,7 @@ const registerReactStack = () => {
     // $FlowFixMe
     console.reactStack = frames => reactFrameStack.push(frames);
     // $FlowFixMe
-    console.reactStackEnd = frames => reactFrameStack.pop();
+    console.reactStackEnd = () => reactFrameStack.pop();
   }
 };
 

packages/react-error-overlay/src/utils/getStackFrames.js

@@ -13,7 +13,7 @@ import { unmap } from './unmapper';
 
 function getStackFrames(
   error: Error,
-  unhandledRejection: boolean = false,
+  unhandledRejection: boolean = false, // eslint-disable-line
   contextSize: number = 3
 ): Promise<StackFrame[] | null> {
   const parsedFrames = parse(error);

tasks/e2e-installs.sh

@@ -75,7 +75,6 @@ root_path=$PWD
 if hash npm 2>/dev/null
 then
   npm i -g npm@latest
-  npm cache clean || npm cache verify
 fi
 
 # Bootstrap monorepo

tasks/e2e-kitchensink.sh

@@ -68,7 +68,6 @@ root_path=$PWD
 if hash npm 2>/dev/null
 then
   npm i -g npm@latest
-  npm cache clean || npm cache verify
 fi
 
 # Bootstrap monorepo

tasks/e2e-monorepos.sh

@@ -66,7 +66,6 @@ root_path=$PWD
 if hash npm 2>/dev/null
 then
   npm i -g npm@latest
-  npm cache clean || npm cache verify
 fi
 
 # Bootstrap create-react-app monorepo

tasks/e2e-simple.sh

@@ -79,7 +79,6 @@ fi
 if hash npm 2>/dev/null
 then
   npm i -g npm@latest
-  npm cache clean || npm cache verify
 fi
 
 # Bootstrap monorepo