[Chapel Merge] Remove trademark symbol from HPE Cray EX docs

Branch: refs/heads/main
Revision: 53375b4
Author: ronawho
Log Message:

Merge pull request #18423 from ronawho/rm-hpe-cray-ex-trademark

Remove trademark symbol from HPE Cray EX docs

[reviewed by @bradcray and @gbtitus]

Generally speaking, HPE does use or require trademark acknowledgement
symbols for their product lines so remove them from the HPE Cray EX
docs.

Modified Files:
M doc/rst/platforms/cray.rst

M doc/rst/usingchapel/chplenv.rst

Compare: https://github.com/chapel-lang/chapel/compare/c7d2d82de9ab...53375b4768d2