fix: Remove `frequency_bar` #2205

Job	Run time
changes	3s
filter-release	0s
release	0s
build-main-docs (plotly-express) / check-make-docs	3s
test-python (plotly-express) / test (3.8)	56s
test-python (plotly-express) / test (3.9)	1m 0s
test-python (plotly-express) / test (3.10)	1m 1s
test-python (plotly-express) / test (3.11)	1m 16s
test-python (plotly-express) / test (3.12)	1m 8s
test-js / unit	57s
build-main-docs (plotly-express) / build-plugin / build-python-package	1m 46s
test-results	1s
build-main-docs (plotly-express) / main-docs / make-docs	38s
	8m 49s

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