refac(fpm.toml): rm unnecessary [[build]] block

Author: rouson

fpm.toml

@@ -15,11 +15,6 @@ implicit-typing=true
 implicit-external=true
 source-form="default"
 
-[build]
-auto-executables = true
-auto-tests = true
-auto-examples = true
-
 [dev-dependencies]
 test-drive = { git = "https://github.com/fortran-lang/test-drive", tag = "v0.4.0" }