chore: Fix lint issues

Author: lqiu96

oauth2_http/java/com/google/auth/oauth2/ExternalAccountCredentials.java

@@ -1001,18 +1001,14 @@ public Builder setUniverseDomain(String universeDomain) {
       return this;
     }
 
-    /**
-     * Warning: Not for public use and can be removed at any time.
-     */
+    /** Warning: Not for public use and can be removed at any time. */
     @InternalApi
     public Builder setConnectTimeout(int connectTimeout) {
       this.connectTimeout = connectTimeout;
       return this;
     }
 
-    /**
-     * Warning: Not for public use and can be removed at any time.
-     */
+    /** Warning: Not for public use and can be removed at any time. */
     @InternalApi
     public Builder setReadTimeout(int readTimeout) {
       this.readTimeout = readTimeout;

oauth2_http/java/com/google/auth/oauth2/StsRequestHandler.java

@@ -237,18 +237,14 @@ public StsRequestHandler.Builder setInternalOptions(String internalOptions) {
       return this;
     }
 
-    /**
-     * Warning: Not for public use and can be removed at any time.
-     */
+    /** Warning: Not for public use and can be removed at any time. */
     @InternalApi
     public StsRequestHandler.Builder setConnectTimeout(int connectTimeout) {
       this.connectTimeout = connectTimeout;
       return this;
     }
 
-    /**
-     * Warning: Not for public use and can be removed at any time.
-     */
+    /** Warning: Not for public use and can be removed at any time. */
     @InternalApi
     public StsRequestHandler.Builder setReadTimeout(int readTimeout) {
       this.readTimeout = readTimeout;