docs: remove lammps.md

README.md

@@ -135,8 +135,7 @@ A full [document](doc/train/train-input-auto.rst) on options in the training inp
     - [Node.js interface](doc/inference/nodejs.md)
 - [Integrate with third-party packages](doc/third-party/index.rst)
     - [Use deep potential with ASE](doc/third-party/ase.md)
-    - [Run MD with LAMMPS](doc/third-party/lammps.md)
-    - [LAMMPS commands](doc/third-party/lammps-command.md)
+    - [Run MD with LAMMPS](doc/third-party/lammps-command.md)
     - [Run path-integral MD with i-PI](doc/third-party/ipi.md)
     - [Run MD with GROMACS](doc/third-party/gromacs.md)
     - [Interfaces out of DeePMD-kit](doc/third-party/out-of-deepmd-kit.md)

doc/third-party/index.md

@@ -3,8 +3,7 @@
 Note that the model for inference is required to be compatible with the DeePMD-kit package. See [Model compatibility](../troubleshooting/model-compatability.html) for details.
 
 - [Use deep potential with ASE](ase.md)
-- [Run MD with LAMMPS](lammps.md)
-- [LAMMPS commands](lammps-command.md)
+- [Run MD with LAMMPS](lammps-command.md)
 - [Run path-integral MD with i-PI](ipi.md)
 - [Run MD with GROMACS](gromacs.md)
 - [Interfaces out of DeePMD-kit](out-of-deepmd-kit.md)

doc/third-party/index.rst

@@ -7,7 +7,6 @@ Note that the model for inference is required to be compatible with the DeePMD-k
    :maxdepth: 1
 
    ase
-   lammps
    lammps-command
    ipi
    gromacs

doc/third-party/lammps-command.md

@@ -1,4 +1,4 @@
-# LAMMPS commands
+# Run MD with LAMMPS
 
 ## units
 All units in LAMMPS except `lj` are supported. `lj` is not supported.