chore: flatten x64 mcontext restore else

runtime/include/arch/x86_64/context.h

@@ -94,13 +94,15 @@ arch_mcontext_restore(mcontext_t *mc, arch_context_t *ctx)
 		mc->gregs[REG_RSP] = ctx->regs[5];
 		mc->gregs[REG_RIP] = ctx->regs[16] + ARCH_SIG_JMP_OFF;
 		ctx->regs[5]       = 0;
+
 		return 1;
-	} else {
+	}
+
 	/* Restore mcontext */
 	memcpy(mc, &ctx->mctx, sizeof(mcontext_t));
 	memset(&ctx->mctx, 0, sizeof(mcontext_t));
+
 	return 0;
-	}
 }
 
 /**