SLCORE-1153: Don't log an error on ProtBuf check for analysis readiness

This is just a noisy error when creating a connection and binding a project to determine whether the analysis is yet ready.
There is currently no situation in which logging such an error is valid or useful.

backend/server-connection/src/main/java/org/sonarsource/sonarlint/core/serverconnection/AnalyzerConfigurationStorage.java

@@ -60,7 +60,8 @@ private Optional<AnalyzerConfiguration> tryRead() {
     try {
       return Optional.of(read());
     } catch (Exception e) {
-      LOG.error("Could not load analyzer configuration storage", e);
+      // Don't log an error as this is currently only used for checking whether or not the analysis is ready as well as the file exclusion
+      // service after a binding change. The error was just noisy and misleading to users.
       return Optional.empty();
     }
   }

backend/server-connection/src/main/java/org/sonarsource/sonarlint/core/serverconnection/storage/PluginsStorage.java

@@ -54,8 +54,9 @@ public boolean isValid() {
     try {
       rwLock.read(() -> ProtobufFileUtil.readFile(pluginReferencesFilePath, Sonarlint.PluginReferences.parser()));
       return true;
-    } catch (Exception e) {
-      LOG.error("Could not load plugins storage", e);
+    } catch (Exception ignored) {
+      // Don't log an error or forward it as this is only used for checking whether or not the analysis is ready yet. The error was just
+      // noisy and misleading to users.
       return false;
     }
   }