diff --git a/ui/build/config.go b/ui/build/config.go
index 84568f8..e581e8f 100644
--- a/ui/build/config.go
+++ b/ui/build/config.go
@@ -120,9 +120,6 @@
 	includeTags    []string
 	sourceRootDirs []string
 
-	productReleaseConfigMaps       string
-	productReleaseConfigMapsLoaded bool
-
 	// Data source to write ninja weight list
 	ninjaWeightListSource NinjaWeightListSource
 }
@@ -953,9 +950,6 @@
 }
 
 func (c *configImpl) Environment() *Environment {
-	if c.productReleaseConfigMapsLoaded {
-		c.environ.Set("PRODUCT_RELEASE_CONFIG_MAPS", c.productReleaseConfigMaps)
-	}
 	return c.environ
 }
 
diff --git a/ui/build/dumpvars.go b/ui/build/dumpvars.go
index 360d0da..efe7478 100644
--- a/ui/build/dumpvars.go
+++ b/ui/build/dumpvars.go
@@ -92,20 +92,6 @@
 	}
 	defer tool.Finish()
 
-	releaseConfigVars := []string{
-		"PRODUCT_RELEASE_CONFIG_MAPS",
-	}
-
-	if !config.productReleaseConfigMapsLoaded {
-		// Get the PRODUCT_RELEASE_CONFIG_MAPS for this product, to avoid polluting the environment
-		// when we run product config to get the rest of the make vars.
-		config.productReleaseConfigMapsLoaded = true
-		releaseMapVars, err := dumpMakeVars(ctx, config, goals, releaseConfigVars, false, "")
-		if err != nil {
-			ctx.Fatalln("Error getting PRODUCT_RELEASE_CONFIG_MAPS:", err)
-		}
-		config.productReleaseConfigMaps = releaseMapVars["PRODUCT_RELEASE_CONFIG_MAPS"]
-	}
 	cmd := Command(ctx, config, "dumpvars",
 		config.PrebuiltBuildTool("ckati"),
 		"-f", "build/make/core/config.mk",
@@ -205,9 +191,6 @@
 		"TARGET_BUILD_APPS",
 		"TARGET_BUILD_UNBUNDLED",
 
-		// Additional release config maps
-		"PRODUCT_RELEASE_CONFIG_MAPS",
-
 		// compiler wrappers set up by make
 		"CC_WRAPPER",
 		"CXX_WRAPPER",