You could fix this with styling. Buttons and such have some css :
-&:active and &:active:focus
for example the default button has:
.btn-default {
&:hover,
&.hover,
&:focus,
&:active,
&:active:focus {
border-color: $btn-default-border-color;
background-color: $btn-default-bg-hover;
}
}
Which give the button the highlight when you click on it. By removing or changing this, you highlight will be gone.