docs: remove errant duplicated text

[henryqdineen]

Reading though the docs for the first time in a while and I noticed a paragraph that was out of place and apparently duplicated from one that is earlier in the document.

Original blurb:

apollo-client/docs/source/caching/cache-field-behavior.mdx

Lines 58 to 60 in 0453747

	If a field accepts arguments, the `read` function's second parameter includes the values of those arguments.
	The following `read` function checks whether the `maxLength` argument is provided when the `name` field is queried. If it is, the function returns only the first `maxLength` characters of the person's name. Otherwise, the person's full name is returned.

Duplicate (removed in this PR):

apollo-client/docs/source/caching/cache-field-behavior.mdx

Line 117 in 0453747

If a field accepts arguments, the second parameter includes the values of those arguments. The following `read` function checks to see if the `maxLength` argument is provided when the `name` field is queried. If it is, the function returns only the first `maxLength` characters of the person's name. Otherwise, the person's full name is returned.

[StephenBarlow]

Good catch, thanks @henryqdineen!