program: drop unused errors

program/Cargo.toml

@@ -23,7 +23,6 @@ serde = { version = "1.0.193", features = ["derive"] }
 solana-frozen-abi = { version = "2.0.1", optional = true }
 solana-frozen-abi-macro = { version = "2.0.1", optional = true }
 solana-program = "2.0.1"
-spl-program-error = "0.5.0"
 
 [dev-dependencies]
 mollusk-svm = { version = "0.0.5", features = ["fuzz"] }

program/src/entrypoint.rs

@@ -1,11 +1,8 @@
 //! Program entrypoint
 
 use {
-    crate::{error::AddressLookupError, processor},
-    solana_program::{
-        account_info::AccountInfo, entrypoint::ProgramResult, program_error::PrintProgramError,
-        pubkey::Pubkey,
-    },
+    crate::processor,
+    solana_program::{account_info::AccountInfo, entrypoint::ProgramResult, pubkey::Pubkey},
 };
 
 solana_program::entrypoint!(process_instruction);
@@ -14,9 +11,5 @@ fn process_instruction(
     accounts: &[AccountInfo],
     instruction_data: &[u8],
 ) -> ProgramResult {
-    if let Err(error) = processor::process(program_id, accounts, instruction_data) {
-        error.print::<AddressLookupError>();
-        return Err(error);
-    }
-    Ok(())
+    processor::process(program_id, accounts, instruction_data)
 }

program/src/lib.rs

@@ -3,7 +3,6 @@
 
 #[cfg(all(target_os = "solana", feature = "bpf-entrypoint"))]
 mod entrypoint;
-pub mod error;
 pub mod instruction;
 pub mod processor;
 pub mod state;