fixed issue #2383 dual dropdowns

[c3ho]

This pull request makes the following changes:

• removed dual dropdown when selecting languages
• removed toggle for first language selection option and svg

Testing checklist:

• verified I could still reach and see second dropdown, first drop down toggle id now disabled

• I certify that I ran my checklist

Fixes ushahidi/platform# .

Ping @ushahidi/platform

[ushbot]

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[c3ho]

[clabot:check]

[ushbot]

@rjmackay It looks like @c3ho just signed our Contributor License Agreement. 👍

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[Angamanga]

Thank you so much @c3ho! I will review and get back to you!

[rowasc]

LGTM! Thank you @c3ho

[rowasc]

FYI @Angamanga this passed just fine locally, so I'm sending it to @Obadha2 in the test environment for a testing round with multiple languages.

[rowasc]

@allcontributors add c3ho for code

[AmTryingMyBest]

@rowasc this passes qa on test environment. 👍