Revert "[WebAPKs] Make WebAPK update flow more sensible"

chrome/android/webapk/shell_apk/BUILD.gn

Index: chrome/android/webapk/shell_apk/BUILD.gn
diff --git a/chrome/android/webapk/shell_apk/BUILD.gn b/chrome/android/webapk/shell_apk/BUILD.gn
index 5958254b8f9b7e684061842e84f19a14fc4d5a97..9d61949c6423af93e91fc365dcf06a058ff04feb 100644
--- a/chrome/android/webapk/shell_apk/BUILD.gn
+++ b/chrome/android/webapk/shell_apk/BUILD.gn
@@ -54,7 +54,7 @@ manifest_processor_template("shell_apk_manifest") {
   output = shell_apk_manifest
 
   variables = [
-    "shell_apk_version=$template_shell_apk_version",
+    "shell_apk_version=$shell_apk_version",
     "manifest_package=org.chromium.webapk",
     "runtime_host=$webapk_runtime_host",
     "start_url=$webapk_start_url",
@@ -81,7 +81,7 @@ manifest_processor_template("shell_apk_manifest_javatests") {
   output = shell_apk_manifest_javatests
 
   variables = [
-    "shell_apk_version=$template_shell_apk_version",
+    "shell_apk_version=$shell_apk_version",
     "manifest_package=org.chromium.webapk.test",
     "runtime_host=org.chromium.chrome",
     "start_url=https://www.template.com/home_page",