There are some forks where removing it completely doesn't work because the default (no cable pull) mode is locked. If yours isn't like that, then yes you can remove it completely without issue.
Most forks with remote lockout also have a manually switchable top cap or damper assembly available that can replace the remote lockout top cap. That is easy for a ...
The service manual for SRAM forks is Here.
It has a note on the Recon TK
Use air spring kit to upgrade and change firmness in coil forks
So while it is not possible to get a firmer spring, it is theoretically possible to upgrade the fork to air, if you can find the part for your exact fork model and year.