Debug symbols present in wasm

[giomf]

Description

Although we build with the --release flag the wasm debug symbols are included. This bloats the binary unnecessarily and probably leads to a performance loss.

To Reproduce

• Build a component
• inspect it with wasm-tools objdump
• custom section are full of debug symbols

Expected behavior

Only some mandatory custom sections should be present.

[giomf]

First tests have shown that by removing the debug symbols the binary is 37x smaller in size.