If you don't wish to display the Pinterest "Pin It" option, you can leave the Pinterest-enable option in the Variables section of Store Editor set to "No." This option is set to "No" by default.
Should you wish to hide either the "Share on Twitter" icon or the Facebook "Like" icon, you may do so by customizing the Social Media Sharing CSS styles.
For example, if you wish to hide the "Share on Twitter" icon, you could overwrite the Twitter CSS style with the following:
#ys_social_tweet {visibility:hidden;}
If you wish to hide the Facebook "Like" button, you could overwrite the Facebook "Like" button CSS style with the following:
#ys_social_fblike {visibility:hidden;}
Please note that the above workaround hides the sharing option only, but does not adjust the rest of the Social Media Sharing module. If you are hiding either the "Share on Twitter" icon or the Facebook "Like" icon, you may wish to make additional CSS customizations to change where the visible option appears in the module, or to hide the vertical line that separates the two options.
For more information about the Social Media Sharing CSS styles, including how to add these styles to the css-edits file, please see our Social Media Sharing CSS reference.