chore: remove release-please version increment in samples (#2212)

* chore: remove release-please version increment in samples

* fix

Author: kolea2

samples/install-without-bom/pom.xml

@@ -25,15 +25,13 @@
 
 
   <dependencies>
-    <!-- {x-version-update-start:google-cloud-bigtable:released} -->
     <!-- [START bigtable_install_without_bom] -->
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-bigtable</artifactId>
       <version>2.38.0</version>
     </dependency>
     <!-- [END bigtable_install_without_bom] -->
-    <!-- {x-version-update-end} -->
 
     <dependency>
       <groupId>junit</groupId>