diff --git a/doc/src/fix_nve.txt b/doc/src/fix_nve.txt
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--- a/doc/src/fix_nve.txt
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@@ -1,74 +0,0 @@
-"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
-
-:link(lws,http://lammps.sandia.gov)
-:link(ld,Manual.html)
-:link(lc,Section_commands.html#comm)
-
-:line
-
-fix nve command :h3
-fix nve/cuda command :h3
-fix nve/intel command :h3
-fix nve/kk command :h3
-fix nve/omp command :h3
-
-[Syntax:]
-
-fix ID group-ID nve :pre
-
-ID, group-ID are documented in "fix"_fix.html command
-nve = style name of this fix command :ul
-
-[Examples:]
-
-fix 1 all nve :pre
-
-[Description:]
-
-Perform constant NVE integration to update position and velocity for
-atoms in the group each timestep.  V is volume; E is energy.  This
-creates a system trajectory consistent with the microcanonical
-ensemble.
-
-:line
-
-Styles with a {cuda}, {gpu}, {intel}, {kk}, {omp}, or {opt} suffix are
-functionally the same as the corresponding style without the suffix.
-They have been optimized to run faster, depending on your available
-hardware, as discussed in "Section_accelerate"_Section_accelerate.html
-of the manual.  The accelerated styles take the same arguments and
-should produce the same results, except for round-off and precision
-issues.
-
-These accelerated styles are part of the USER-CUDA, GPU, USER-INTEL,
-KOKKOS, USER-OMP and OPT packages, respectively.  They are only
-enabled if LAMMPS was built with those packages.  See the "Making
-LAMMPS"_Section_start.html#start_3 section for more info.
-
-You can specify the accelerated styles explicitly in your input script
-by including their suffix, or you can use the "-suffix command-line
-switch"_Section_start.html#start_7 when you invoke LAMMPS, or you can
-use the "suffix"_suffix.html command in your input script.
-
-See "Section_accelerate"_Section_accelerate.html of the manual for
-more instructions on how to use the accelerated styles effectively.
-
-:line
-
-[Restart, fix_modify, output, run start/stop, minimize info:]
-
-No information about this fix is written to "binary restart
-files"_restart.html.  None of the "fix_modify"_fix_modify.html options
-are relevant to this fix.  No global or per-atom quantities are stored
-by this fix for access by various "output
-commands"_Section_howto.html#howto_15.  No parameter of this fix can
-be used with the {start/stop} keywords of the "run"_run.html command.
-This fix is not invoked during "energy minimization"_minimize.html.
-
-[Restrictions:] none
-
-[Related commands:]
-
-"fix nvt"_fix_nh.html, "fix npt"_fix_nh.html
-
-[Default:] none