Remove error logging from getting the build info (#11499)

lib/appium.js

@@ -149,6 +149,7 @@ class AppiumDriver extends BaseDriver {
     // It is not recommended to access this property directly from the outside
     this.pendingDrivers = {};
 
+    // allow this to happen in the background, so no `await`
     updateBuildInfo();
   }
 

lib/config.js

@@ -40,10 +40,7 @@ async function getGitRev (useGitHubFallback = false) {
         cwd: rootDir
       });
       return stdout.trim();
-    } catch (err) {
-      logger.warn(`Cannot retrieve git revision for Appium version ${APPIUM_VER} from the local repository. ` +
-        `Original error: ${err.message}`);
-    }
+    } catch (ign) {}
   }
 
   if (!useGitHubFallback) {
@@ -64,10 +61,7 @@ async function getGitRev (useGitHubFallback = false) {
         }
       }
     }
-  } catch (err) {
-    logger.warn(`Cannot retrieve git revision for Appium version ${APPIUM_VER} from GitHub. ` +
-      `Original error: ${err.message}`);
-  }
+  } catch (ign) {}
   return null;
 }
 
@@ -78,10 +72,7 @@ async function getGitTimestamp (commitSha, useGitHubFallback = false) {
         cwd: rootDir
       });
       return stdout.trim();
-    } catch (err) {
-      logger.warn(`Cannot retrieve the timestamp for Appium git commit ${commitSha} from the local repository. ` +
-        `Original error: ${err.message}`);
-    }
+    } catch (ign) {}
   }
 
   if (!useGitHubFallback) {
@@ -103,10 +94,7 @@ async function getGitTimestamp (commitSha, useGitHubFallback = false) {
         return resBodyObj.commit.author.date;
       }
     }
-  } catch (err) {
-    logger.warn(`Cannot retrieve the timestamp for Appium git commit ${commitSha} from GitHub. ` +
-      `Original error: ${err.message}`);
-  }
+  } catch (ign) {}
   return null;
 }