Remove pre-downloading of go modules

Author: ycombinator

magefile.go

@@ -488,13 +488,6 @@ func (Test) Unit(ctx context.Context) error {
 func (Test) FIPSOnlyUnit(ctx context.Context) error {
 	mg.Deps(Prepare.Env, Build.TestBinaries)
 
-	// We pre-cache go module dependencies before running the unit tests with
-	// GODEBUG=fips140=only.  Otherwise, the command that runs the unit tests
-	// will try to download the dependencies and could fail because the TLS
-	// negotiation with the Go module proxy could use a non-FIPS compliant
-	// key exchange protocol, e.g. X25519.
-	RunGo("mod", "download")
-
 	params := devtools.DefaultGoTestUnitArgs()
 	params.Env["FIPS"] = "true"