Move check for EmitNewerGoVersionNeeded diagnostic

This should only be done when --identify-environment has not been passed

Author: owen-mc

go/extractor/cli/go-autobuilder/go-autobuilder.go

@@ -282,10 +282,6 @@ func tryReadGoDirective(depMode DependencyInstallerMode) (string, bool) {
 				found = true
 				if len(matches) > 1 {
 					version = string(matches[1])
-					semverVersion := "v" + version
-					if semver.Compare(semverVersion, getEnvGoSemVer()) >= 0 {
-						diagnostics.EmitNewerGoVersionNeeded()
-					}
 				}
 			}
 		}
@@ -672,7 +668,11 @@ func installDependenciesAndBuild() {
 		os.Setenv("GO111MODULE", "auto")
 	}
 
-	_, goModVersionFound := tryReadGoDirective(depMode)
+	goModVersion, goModVersionFound := tryReadGoDirective(depMode)
+
+	if semver.Compare("v"+goModVersion, getEnvGoSemVer()) >= 0 {
+		diagnostics.EmitNewerGoVersionNeeded()
+	}
 
 	modMode := getModMode(depMode)
 	modMode = fixGoVendorIssues(modMode, depMode, goModVersionFound)