OCPBUGS-55425: remove the make build cross rule and add build rule, update README.

Author: Mylanos

Makefile

@@ -18,6 +18,8 @@ check: | verify test-unit
 
 IMAGE_REGISTRY?=registry.svc.ci.openshift.org
 
+TAGS ?= ocp
+
 # This will call a macro called "build-image" which will generate image specific targets based on the parameters:
 # $0 - macro name
 # $1 - target name
@@ -37,6 +39,9 @@ $(call add-profile-manifests,manifests,./profile-patches,./manifests)
 
 GO_UNIT_TEST_PACKAGES :=./pkg/... ./cmd/...
 
+build:
+	go build -tags '$(TAGS)' -o $@ ./cmd/console/main.go
+
 # Run tests
 test: test-unit test-e2e
 

README.md

@@ -159,15 +159,11 @@ Now we should be ready to build & deploy the operator with our changes.
 
 #### Preparation to Deploy Operator Changes Quickly
 
-Typically to build your binary you will use the `make` command:
+Typically to build your binary you would use the `make` command:
 
 ```bash
-# this will build for your platform:
+# this will build locally:
 make
-# if you are running OSX, you will need to build for linux doing something like:
-OS_DEBUG=true OS_BUILD_PLATFORMS=linux/amd64 make
-# note that you can build for mulitiple platforms with:
-make build-cross
 ```
 But the build step is included in the `Dockerfile.rhel7`, so this does not need to be done manually.
 You can instead simply build the container image and push it to your own registry: