
How do you remove the echo every time you press enter within cmder?
I don't understand the question. You sent a screenshot of the cmder prompt hitting enter several times.
How do I remove the "C:\MyData\Software\cmder_mini" echo every time I press enter?
That IS the prompt for Cmder telling you tour current working directory. The prompt is customizable using the lua language that us used by Clink to write the prompt.
You would need to write a custom %cmder_root%\config\prompt.lua to change the way the prompt is written.
You have everything on one line:
function my_prompt_filter()
cwd = clink.get_cwd()
prompt = "\x1b[1;32;40m{cwd}{git}{hg}{svn}\x1b[1;30;40m{lamb} \x1b[0m"
new_value = string.gsub(prompt, "{cwd}", cwd)
clink.prompt.value = string.gsub(new_value, "{lamb}", "位")
end
clink.prompt.register_filter(my_prompt_filter, 1)

Or remove the path entirely:
function my_prompt_filter()
cwd = clink.get_cwd()
prompt = "\x1b[1;32;40m{git}{hg}{svn}\x1b[1;30;40m{lamb} \x1b[0m"
clink.prompt.value = string.gsub(prompt, "{lamb}", "位")
end
clink.prompt.register_filter(my_prompt_filter, 1)

Most helpful comment
You have everything on one line:
Or remove the path entirely: