Revert "[libc] printf, putchar and vprintf in bareemetal entrypoints (#95436)"

This reverts commit b1de42a81d838bb0c6dea7d2436820a2456c730b, which
breaks libc build for baremetal targets.
diff --git a/libc/config/baremetal/arm/entrypoints.txt b/libc/config/baremetal/arm/entrypoints.txt
index 2930d71..7fb82c6 100644
--- a/libc/config/baremetal/arm/entrypoints.txt
+++ b/libc/config/baremetal/arm/entrypoints.txt
@@ -80,11 +80,8 @@
 
     # stdio.h entrypoints
     libc.src.stdio.remove
-    libc.src.stdio.printf
-    libc.src.stdio.putchar
     libc.src.stdio.sprintf
     libc.src.stdio.snprintf
-    libc.src.stdio.vprintf
     libc.src.stdio.vsprintf
     libc.src.stdio.vsnprintf
 
diff --git a/libc/config/baremetal/riscv/entrypoints.txt b/libc/config/baremetal/riscv/entrypoints.txt
index 6d38676..b769b43 100644
--- a/libc/config/baremetal/riscv/entrypoints.txt
+++ b/libc/config/baremetal/riscv/entrypoints.txt
@@ -80,11 +80,8 @@
 
     # stdio.h entrypoints
     libc.src.stdio.remove
-    libc.src.stdio.printf
-    libc.src.stdio.putchar
     libc.src.stdio.sprintf
     libc.src.stdio.snprintf
-    libc.src.stdio.vprintf
     libc.src.stdio.vsprintf
     libc.src.stdio.vsnprintf