Android: Remove tolerance of undefined ABI variables

Now that all targets are explicit about their ABI requirements, a bunch
of tolerance can be removed from the build configs.  This simplifies the
files, as well as reduces the risk of configs not doing what they
should.

Bug: 1027573
Change-Id: I3ea03a72e52a86d2a3de822215b505b618a50f2d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1940303
Commit-Queue: Christopher Grant <cjgrant@chromium.org>
Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Reviewed-by: Richard Coles <torne@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#722029}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: ac6d3f8790b2ee78a905ec7d78f912bc0c5396cf

util/version.gni

@@ -43,7 +43,6 @@ if (is_mac) {
       "chrome_modern_version_code = \"@CHROME_MODERN_VERSION_CODE@\" " +
       "monochrome_version_code = \"@MONOCHROME_VERSION_CODE@\" " +
       "trichrome_version_code = \"@TRICHROME_VERSION_CODE@\" " +
-      "trichrome_64_32_version_code = \"@TRICHROME_64_32_VERSION_CODE@\" " +
       "webview_stable_version_code = \"@WEBVIEW_STABLE_VERSION_CODE@\" " +
       "webview_beta_version_code = \"@WEBVIEW_BETA_VERSION_CODE@\" " +
       "webview_dev_version_code = \"@WEBVIEW_DEV_VERSION_CODE@\" "