Remove redundant null chaining. NFC

This null chaining operator is not only redundant (because it happens
only after a typeof check), but simply doesn't work.

One cannot do `foo?.bar` if `foo` does not exist.  One would need to
instead do `globalThis?.foo?.bar`.

Author: sbc100

src/minimum_runtime_check.js

@@ -20,7 +20,7 @@
 
   var TARGET_NOT_SUPPORTED = {{{ TARGET_NOT_SUPPORTED }}};
 
-  var currentNodeVersion = typeof process !== 'undefined' && process?.versions?.node ? humanReadableVersionToPacked(process.versions.node) : TARGET_NOT_SUPPORTED;
+  var currentNodeVersion = typeof process !== 'undefined' && process.versions?.node ? humanReadableVersionToPacked(process.versions.node) : TARGET_NOT_SUPPORTED;
 #if MIN_NODE_VERSION == TARGET_NOT_SUPPORTED
   if (currentNodeVersion < TARGET_NOT_SUPPORTED) {
     throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)');
@@ -30,7 +30,7 @@
     throw new Error(`This emscripten-generated code requires node v${ packedVersionToHumanReadable({{{ MIN_NODE_VERSION }}}) } (detected v${packedVersionToHumanReadable(currentNodeVersion)})`);
   }
 
-  var currentSafariVersion = typeof navigator !== 'undefined' && navigator?.userAgent?.includes("Safari/") && navigator.userAgent.match(/Version\/(\d+\.?\d*\.?\d*)/) ? humanReadableVersionToPacked(navigator.userAgent.match(/Version\/(\d+\.?\d*\.?\d*)/)[1]) : TARGET_NOT_SUPPORTED;
+  var currentSafariVersion = typeof navigator !== 'undefined' && navigator.userAgent?.includes("Safari/") && navigator.userAgent.match(/Version\/(\d+\.?\d*\.?\d*)/) ? humanReadableVersionToPacked(navigator.userAgent.match(/Version\/(\d+\.?\d*\.?\d*)/)[1]) : TARGET_NOT_SUPPORTED;
 #if MIN_SAFARI_VERSION == TARGET_NOT_SUPPORTED
   if (currentSafariVersion < TARGET_NOT_SUPPORTED) {
     throw new Error(`This page was compiled without support for Safari browser. Pass -sMIN_SAFARI_VERSION=${currentSafariVersion} or lower to enable support for this browser.`);
@@ -40,7 +40,7 @@
     throw new Error(`This emscripten-generated code requires Safari v${ packedVersionToHumanReadable({{{ MIN_SAFARI_VERSION }}}) } (detected v${currentSafariVersion})`);
   }
 
-  var currentFirefoxVersion = typeof navigator !== 'undefined' && navigator?.userAgent?.match(/Firefox\/(\d+(?:\.\d+)?)/) ? parseFloat(navigator.userAgent.match(/Firefox\/(\d+(?:\.\d+)?)/)[1]) : TARGET_NOT_SUPPORTED;
+  var currentFirefoxVersion = typeof navigator !== 'undefined' && navigator.userAgent?.match(/Firefox\/(\d+(?:\.\d+)?)/) ? parseFloat(navigator.userAgent.match(/Firefox\/(\d+(?:\.\d+)?)/)[1]) : TARGET_NOT_SUPPORTED;
 #if MIN_FIREFOX_VERSION == TARGET_NOT_SUPPORTED
   if (currentFirefoxVersion < TARGET_NOT_SUPPORTED) {
     throw new Error(`This page was compiled without support for Firefox browser. Pass -sMIN_FIREFOX_VERSION=${currentFirefoxVersion} or lower to enable support for this browser.`);
@@ -50,7 +50,7 @@
     throw new Error(`This emscripten-generated code requires Firefox v{{{ MIN_FIREFOX_VERSION }}} (detected v${currentFirefoxVersion})`);
   }
 
-  var currentChromeVersion = typeof navigator !== 'undefined' && navigator?.userAgent?.match(/Chrome\/(\d+(?:\.\d+)?)/) ? parseFloat(navigator.userAgent.match(/Chrome\/(\d+(?:\.\d+)?)/)[1]) : TARGET_NOT_SUPPORTED;
+  var currentChromeVersion = typeof navigator !== 'undefined' && navigator.userAgent?.match(/Chrome\/(\d+(?:\.\d+)?)/) ? parseFloat(navigator.userAgent.match(/Chrome\/(\d+(?:\.\d+)?)/)[1]) : TARGET_NOT_SUPPORTED;
 #if MIN_CHROME_VERSION == TARGET_NOT_SUPPORTED
   if (currentChromeVersion < TARGET_NOT_SUPPORTED) {
     throw new Error(`This page was compiled without support for Chrome browser. Pass -sMIN_CHROME_VERSION=${currentChromeVersion} or lower to enable support for this browser.`);