Remove operator label on ATM

[dch0ph]

Fixes #4575

Changes proposed in this pull request:
There was agreement in the discussion of #4575 that the current rendering of the operator tag on ATMs was unsatisfactory: adding visual clutter for map users, and not providing useful feedback for mappers. Overall, removing the labelling seemed the best option.

Test rendering with links to the example places:

Example where decluttering is helpful:

Before

After

Note helpful de-duplication of bank vs ATM names, in particular when the bank name is now visible (HSBC UK in bottom right)

[imagico]

Looks good, works as intended.

before:

after:

As indicated in #4575 i am in support of this - as the approach with most support and as a cautionary approach to labeling to avoid problematic mapping incentives.