remove ensureMFS call when generating share link

[yusefnapora]

This removes the call to ensureMFS in doFilesShareLink to fix and close #1744

I wasn't able to run the e2e tests on my machine, so we'll see if anything complains in CI, I guess :)

cc @lidel

[yusefnapora]

I can get the e2e tests to pass locally against go-ipfs, but I get the same error as in CI for js-ipfs.

e2e tests with E2E_IPFSD_TYPE=go

env PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true PUPPETEER_EXECUTABLE_PATH=/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome E2E_IPFSD_TYPE=go npm run test:e2e

ipfs-webui@2.12.3 test:e2e
cross-env JEST_PUPPETEER_CONFIG=test/e2e/jest-puppeteer.config.js jest --verbose -c test/e2e/jest.config.js --runInBand

Determining test suites to run...
E2E using go-ipfs/0.8.0/ (/Users/yusef/work/repos/ipfs-webui/node_modules/go-ipfs/go-ipfs/ipfs) with Peer ID 12D3KooWPUDbhzrsfWeS1FkAHwBVLef6tQzckcfgAimdCGHGJLKy

(node:71386) [DEP0066] DeprecationWarning: OutgoingMessage.prototype._headers is deprecated
(Use node --trace-deprecation ... to show where the warning was created)
(node:71367) V8: /Users/yusef/work/repos/ipfs-webui/node_modules/borc/src/decoder.asm.js:3 Linking failure in asm.js: Unexpected stdlib member
(Use node --trace-warnings ... to show where the warning was created)
PASS test/e2e/peers.test.js (17.716 s)
Peers screen
✓ should have a clickable "Add connection" button (1184 ms)
✓ should confirm connection after "Add connection" (2498 ms)
✓ should have a peer from a "Local Network" (5112 ms)

PASS test/e2e/files.test.js (9.095 s)
Files screen
✓ should have the active Add menu (1596 ms)
✓ should allow for a successful import of two files (1796 ms)

PASS test/e2e/navigation.test.js (8.769 s)
Navigation menu
✓ should work for Status page (882 ms)
✓ should work for Files page (554 ms)
✓ should work for Explore page (1148 ms)
✓ should work for Peers page (337 ms)
✓ should work for Settings page (804 ms)

PASS test/e2e/settings.test.js (6.172 s)
Settings screen
✓ should show config of IPFS node (109 ms)

PASS test/e2e/explore.test.js (6.617 s)
Explore screen
✓ should have Project Apollo Archive as one of examples (112 ms)
✓ should open arbitrary CID (1385 ms)

PASS test/e2e/status.test.js (6.474 s)
Status page
✓ should have Status menu item (102 ms)
✓ should inform it is sucessfully connected to IPFS (25 ms)
✓ should display Peer ID of real IPFS node (30 ms)

(node:71367) V8: /Users/yusef/work/repos/ipfs-webui/node_modules/borc/src/decoder.asm.js:3 Linking failure in asm.js: Unexpected stdlib member
PASS test/e2e/remote-api.test.js (22.805 s)
API @ multiaddr
✓ should be possible to set via Settings page (4833 ms)
✓ should show full multiaddr on Status page (1530 ms)
✓ should show full multiaddr on Settings page (519 ms)
API @ URL
✓ should be possible to set via Settings page (884 ms)
✓ should show full multiaddr on Status page (624 ms)
✓ should show full multiaddr on Settings page (268 ms)
API with CORS and Basic Auth
✓ should work when localStorage[ipfsApi] is set to URL with inlined Basic Auth credentials (890 ms)
✓ should work when localStorage[ipfsApi] is set to a JSON string with a custom ipfs-http-client config (766 ms)
✓ should work when URL with inlined credentials are entered at the Settings page (1818 ms)
✓ should work when JSON with ipfs-http-client config is entered at the Settings page (2715 ms)

Test Suites: 7 passed, 7 total
Tests: 26 passed, 26 total
Snapshots: 0 total
Time: 77.796 s, estimated 113 s
Ran all test suites.

It looks like the e2e tests are failing against js-ipfs generally at the moment (#1737).

[lidel]

Thank you!
Merging as e2e in js (#1737) needs to be tackled in separate pr.