Remove dead code (#11082)

Removed:
- MessageStore::addFromPacket and addFromString, superseded by
  tryAddFromPacket
- GeoCoord rangeRadiansToMeters, distanceTo, bearingTo
- Router::rawSend, declared virtual with no override and no caller
- ContentHandler handleHotspot, handleFs, handleAdminSettings,
  handleAdminSettingsApply, handleDeleteFsContent and their commented
  route registrations, plus the now unreachable htmlDeleteDir and the
  handleUpdateFs declaration that had no definition
- ContentHelper replaceAll
- OnScreenKeyboardModule popup chain: showPopup, clearPopup, drawPopup,
  drawPopupOverlay and their state, unreachable since the frame based UI
  was replaced by baseUI
- DebugRenderer drawDebugInfoTrampoline, drawDebugInfoSettingsTrampoline
  and the orphaned drawFrameSettings
- NodeListRenderer calculateMaxScroll, drawColumns and a stale extern
  haveGlyphs declaration with no definition
- UIRenderer::haveGlyphs, Screen::blink,
  NotificationRenderer::showKeyboardMessagePopupWithTitle,
  VirtualKeyboard::getInputText
- InkHUD touchNavLeft, touchNavRight, Applet::getActiveNodeCount,
  ThreadedMessageApplet::saveMessagesToFlash
- TwoButton::setHandlerUp, TwoButtonExtended setHandlerUp,
  setJoystickDownHandlers, setJoystickUpHandlers
- CannedMessageModule LaunchRepeatDestination, isCharInputAllowed,
  hasMessages
- TrafficManagementModule resetStats, recordRouterHopPreserved,
  saturatingIncrement
- UnitConversions::MetersPerSecondToMilesPerHour
- EncryptedStorage getSessionRemainingSeconds
- BMI270Sensor::writeRegisters, GPS::hasFlow, FSCommon copyFile,
  SerialConsole consolePrintf, buzz playLongPressLeadUp,
  memGet displayPercentHeapFree

src/graphics/draw/NodeListRenderer.cpp

@@ -17,12 +17,6 @@
 #include "meshUtils.h"
 #include <algorithm>
 
-// Forward declarations for functions defined in Screen.cpp
-namespace graphics
-{
-extern bool haveGlyphs(const char *str);
-} // namespace graphics
-
 // Global screen instance
 extern graphics::Screen *screen;
 
@@ -180,11 +174,6 @@ unsigned long getModeCycleIntervalMs()
     return 3000;
 }
 
-int calculateMaxScroll(int totalEntries, int visibleRows)
-{
-    return max(0, (totalEntries - 1) / (visibleRows * 2));
-}
-
 void drawColumnSeparator(OLEDDisplay *display, int16_t x, int16_t yStart, int16_t yEnd)
 {
     x = (currentResolution == ScreenResolution::High) ? x - 2 : (currentResolution == ScreenResolution::Low) ? x - 1 : x;
@@ -910,29 +899,6 @@ void drawNodeListWithCompasses(OLEDDisplay *display, OLEDDisplayUiState *state,
     drawNodeListScreen(display, state, x, y, "Bearings", drawEntryCompass, drawCompassArrow, headingRadian, lat, lon);
 }
 
-/// Draw a series of fields in a column, wrapping to multiple columns if needed
-void drawColumns(OLEDDisplay *display, int16_t x, int16_t y, const char **fields)
-{
-    // The coordinates define the left starting point of the text
-    display->setTextAlignment(TEXT_ALIGN_LEFT);
-
-    const char **f = fields;
-    int xo = x, yo = y;
-    while (*f) {
-        display->drawString(xo, yo, *f);
-        if ((display->getColor() == BLACK) && config.display.heading_bold)
-            display->drawString(xo + 1, yo, *f);
-
-        display->setColor(WHITE);
-        yo += FONT_HEIGHT_SMALL;
-        if (yo > SCREEN_HEIGHT - FONT_HEIGHT_SMALL) {
-            xo += SCREEN_WIDTH / 2;
-            yo = 0;
-        }
-        f++;
-    }
-}
-
 } // namespace NodeListRenderer
 } // namespace graphics
 #endif