Remove unnecessary lines for hasBadMapPolyfill issue for rollup

[iAziz786]

The removed lines in this PR were added by @gaearon in #11745. The reason was a tree-shaking bug in the rollup.

According to @lukastaegert, this bug has been fixed and added to rollup in v1.14.0

I was not sure whether to use the rollup version 1.14.0 or to upgrade it to the latest, so I updated it the latest (1.17.0).

Note: One odd observation was that I ran the test with version 0.52.1 and they all still seem to pass.

[sizebot]

Details of bundled changes.

Comparing: 75ab53b...02382a1

react

File	Filesize Diff	Gzip Diff	Prev Size	Current Size	Prev Gzip	Current Gzip	ENV
react.development.js	-0.2%	-0.3%	116.91 KB	116.66 KB	29.33 KB	29.24 KB	UMD_DEV
react.profiling.min.js	0.0%	0.0%	15.23 KB	15.23 KB	5.61 KB	5.61 KB	UMD_PROFILING
react.development.js	-0.3%	-0.5%	71.94 KB	71.7 KB	18.88 KB	18.79 KB	NODE_DEV
React-dev.js	-0.4%	-0.6%	69.76 KB	69.51 KB	17.93 KB	17.83 KB	FB_WWW_DEV
React-prod.js	0.0%	-0.0%	17.38 KB	17.38 KB	4.54 KB	4.54 KB	FB_WWW_PROD
React-profiling.js	0.0%	-0.0%	17.38 KB	17.38 KB	4.54 KB	4.54 KB	FB_WWW_PROFILING

react-native-renderer

File	Filesize Diff	Gzip Diff	Prev Size	Current Size	Prev Gzip	Current Gzip	ENV
ReactNativeRenderer-prod.js	0.0%	-0.0%	271.99 KB	271.99 KB	46.7 KB	46.7 KB	RN_OSS_PROD
ReactFabric-profiling.js	0.0%	-0.0%	274.53 KB	274.53 KB	47.24 KB	47.24 KB	RN_OSS_PROFILING
ReactFabric-dev.js	-0.0%	-0.1%	733.63 KB	733.35 KB	154.96 KB	154.87 KB	RN_FB_DEV
ReactNativeRenderer-dev.js	-0.0%	-0.1%	720.92 KB	720.64 KB	152.5 KB	152.41 KB	RN_OSS_DEV
ReactFabric-profiling.js	0.0%	-0.0%	274.53 KB	274.53 KB	47.25 KB	47.25 KB	RN_FB_PROFILING
ReactNativeRenderer-dev.js	-0.0%	-0.1%	721.01 KB	720.73 KB	152.54 KB	152.46 KB	RN_FB_DEV
ReactNativeRenderer-prod.js	0.0%	-0.0%	271.99 KB	271.99 KB	46.71 KB	46.71 KB	RN_FB_PROD
ReactFabric-dev.js	-0.0%	-0.1%	733.53 KB	733.25 KB	154.92 KB	154.82 KB	RN_OSS_DEV

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[iAziz786]

The build was failing because of the rollup version upgrade so I revert back to the version it was before. Interestingly, all tests are passing. Apparently It was already fixed in the current version. 🤔

[stale]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contribution.

[lukastaegert]

I do not think this is stale but it depends on finally updating to the latest Rollup version, i.e. merging #15037. Then this change is a no-brainer.

[gaearon]

We bumped the version. Mind rebasing?

[iAziz786]

Sure. I'll let you know once done.

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[sizebot]

No significant bundle size changes to report.

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[sizebot]

No significant bundle size changes to report.

Size changes (stable)

Generated by 🚫 dangerJS against 7bd2a61

[iAziz786]

I have made the changes. @gaearon Running yarn test-prod is breaking in my system but looks like it's okay with CircleCI.

Are we good here?

[iAziz786]

I had to rebase it again because of some file name changes in this PR

[gaearon]

Thanks