Remove unnecessary line breaks in ABAP code examples

Author: oblomov-dev

docs/get_started/quickstart.md

@@ -22,34 +22,26 @@ Create a new package and define a new HTTP handler class:
 
 ```abap [ABAP]
 CLASS zcl_my_abap2UI5_http_handler DEFINITION PUBLIC.
-
   PUBLIC SECTION.
     INTERFACES if_http_extension.
-
 ENDCLASS.
 
 CLASS zcl_my_abap2UI5_http_handler IMPLEMENTATION.
   METHOD if_http_extension~handle_request.
-
     z2ui5_cl_http_handler=>run( server ).
-
   ENDMETHOD.
 ENDCLASS.
 ```
 
 ```abap [ABAP Cloud]
 CLASS zcl_my_abap2UI5_http_handler DEFINITION PUBLIC.
-
   PUBLIC SECTION.
     INTERFACES if_http_service_extension.
-
 ENDCLASS.
 
 CLASS zcl_my_abap2UI5_http_handler IMPLEMENTATION.
   METHOD if_http_service_extension~handle_request.
-
     z2ui5_cl_http_handler=>run( req = request res = response ).
-
   ENDMETHOD.
 ENDCLASS.
 ```